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https://api.github.com/repos/pandas-dev/pandas/issues/101
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101
Enable .drop(...) to work with MultiIndex
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"2011-08-15T17:36:34Z"
"2011-08-16T17:41:19Z"
"2011-08-16T17:41:19Z"
MEMBER
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So we could do like df.drop(['foo']) on this: ``` A B C foo foo one -0.659 0.7982 0.2346 bar two 2.266 -1.157 0.04916 bar three -1.786 2.029 0.4018 bar bar one 0.4682 2.42 -1.073 bar two -0.1343 -0.4565 -0.7504 bar baz two -1.387 -0.9626 -0.9333 bar three 1.277 -2.475 0.9841 bar qux one -0.633 -0.9965 0.6696 bar two 1.359 -0.6917 -0.5386 bar three 0.5482 0.2563 0.6752 bar ``` and get this: ``` A B C foo bar one 0.4682 2.42 -1.073 bar two -0.1343 -0.4565 -0.7504 bar baz two -1.387 -0.9626 -0.9333 bar three 1.277 -2.475 0.9841 bar qux one -0.633 -0.9965 0.6696 bar two 1.359 -0.6917 -0.5386 bar three 0.5482 0.2563 0.6752 bar ```
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102
pandas.stats.interface.ols broken in 0.4 from 0.3
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A previously working (python 2.6, pandas 0.3) program using pandas.stats.interface.ols now (python 2.7, pandas 0.4) throws an exception code: WP = pandas.WidePanel.fromDict( AllPairSignals) AllPairRets = WP.minor_xs('PairRet') AllPairSigs = WP.minor_xs('Sig1') AllPairModel = pandas.stats.interface.ols( y=AllPairRets, x={'x':AllPairSigs}) very lengthy exception: ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (8, 0)) ERROR: An unexpected error occurred while tokenizing input The following traceback may be corrupted or invalid The error message is: ('EOF in multi-line statement', (70, 0)) > c:\python27\lib\site-packages\pandas\core\index.py(242)get_loc() > 241 def get_loc(self, key): > --> 242 return self.indexMap[key] > 243 ## ipdb> quit TypeError Traceback (most recent call last) c:\AlgoTrading\pairstrading\SignalRets.py in <module>() 197 198 if **name** == "**main**": --> 199 main() c:\AlgoTrading\pairstrading\SignalRets.py in main() 177 AllPairRets = WP.minor_xs('PairRet') 178 AllPairSigs = WP.minor_xs('Sig1') --> 179 AllPairModel = pandas.stats.interface.ols( y=AllPairRets, x={'x':AllPairSigs}) 180 PanelOLS[RegKey] = AllPairModel 181 print "PANEL REGRESSION", RegKey, "\n", AllPairModel C:\Python27\lib\site-packages\pandas\stats\interface.pyc in ols(**kwargs) 115 klass = MovingPanelOLS 116 --> 117 return klass(**kwargs) C:\Python27\lib\site-packages\pandas\stats\plm.pyc in **init**(self, y, x, weights, intercept, nw_lags, entity_effects, time_effects, x_effects, cluster, dropped_dummies, verbose, nw_overlap) 85 (self._x, self._x_trans, 86 self._x_filtered, self._y, ---> 87 self._y_trans) = self._prepare_data() 88 89 self._x_trans_raw = self._x_trans.values C:\Python27\lib\site-packages\pandas\stats\plm.pyc in _prepare_data(self) 111 """ 112 (x, x_filtered, y, weights, --> 113 weights_filt, cat_mapping) = self._filter_data() 114 115 self.log('Adding dummies to X variables') C:\Python27\lib\site-packages\pandas\stats\plm.pyc in _filter_data(self) 183 184 x = data_long.filter(x_names) --> 185 y = data_long.ix[:, ['__y__']] 186 187 if self._weights: C:\Python27\lib\site-packages\pandas\core\indexing.pyc in **getitem**(self, key) 96 return self._fancy_getitem_axis(key, axis=0) 97 elif isinstance(key, tuple): ---> 98 return self._getitem_tuple(key) 99 elif _is_list_like(key): 100 return self._fancy_getitem(key, axis=0) C:\Python27\lib\site-packages\pandas\core\indexing.pyc in _getitem_tuple(self, key) 105 if isinstance(self.frame.index, MultiIndex): 106 try: --> 107 return self.frame.xs(key) 108 except KeyError: 109 # could do something more intelligent here? like raising the C:\Python27\lib\site-packages\pandas\core\frame.pyc in xs(self, key, copy) 924 925 self._consolidate_inplace() --> 926 new_data = self._data.xs(key, axis=1, copy=copy) 927 if new_data.ndim == 1: 928 return Series(new_data.as_matrix(), index=self.columns) C:\Python27\lib\site-packages\pandas\core\internals.pyc in xs(self, key, axis, copy) 430 assert(axis >= 1) 431 --> 432 loc = self.axes[axis].get_loc(key) 433 slicer = [slice(None, None) for _ in range(self.ndim)] 434 slicer[axis] = loc C:\Python27\lib\site-packages\pandas\core\index.pyc in get_loc(self, key) 624 if isinstance(key, tuple): 625 if len(key) == self.nlevels: --> 626 return self._get_tuple_loc(key) 627 else: 628 result = slice(*self.slice_locs(key, key)) C:\Python27\lib\site-packages\pandas\core\index.pyc in _get_tuple_loc(self, tup) 642 643 def _get_tuple_loc(self, tup): --> 644 indexer = self._get_label_key(tup) 645 try: 646 return self.indexMap[indexer] C:\Python27\lib\site-packages\pandas\core\index.pyc in _get_label_key(self, tup) 649 650 def _get_label_key(self, tup): --> 651 return tuple(lev.get_loc(v) for lev, v in zip(self.levels, tup)) 652 653 def truncate(self, before=None, after=None): C:\Python27\lib\site-packages\pandas\core\index.pyc in <genexpr>((lev, v)) 649 650 def _get_label_key(self, tup): --> 651 return tuple(lev.get_loc(v) for lev, v in zip(self.levels, tup)) 652 653 def truncate(self, before=None, after=None): C:\Python27\lib\site-packages\pandas\core\index.pyc in get_loc(self, key) 240 241 def get_loc(self, key): --> 242 return self.indexMap[key] 243 244 def get_indexer(self, target, method=None): TypeError: unhashable type Here's a dump of what is in the 2 DataFrames. (The column name is the str of a tuple.) ipdb> AllPairSigs ('CSX', 'NSC') 2011-04-01 -0.6202 2011-04-04 1.433 2011-04-05 -0.8794 2011-04-06 0.9277 2011-04-07 -0.2481 2011-04-08 0.3348 2011-04-11 0.9487 2011-04-12 1.805 2011-04-13 2.779 2011-04-14 -4.287 2011-04-15 0.5962 2011-04-18 1.056 2011-04-19 0.166 2011-04-20 6.21 2011-04-21 0.2945 2011-04-22 -1.267 2011-04-25 0.9863 2011-04-26 1.742 2011-04-27 1.392 2011-04-28 7.962 2011-04-29 3.862 2011-05-02 -1.323 2011-05-03 0.6395 2011-05-04 -1.665 2011-05-05 -2.061 2011-05-06 -0.729 2011-05-09 -0.2925 2011-05-10 2.134 ipdb> AllPairRets ('CSX', 'NSC') 2011-04-01 0.008226 2011-04-04 0.007131 2011-04-05 -0.005219 2011-04-06 0.006201 2011-04-07 0.008445 2011-04-08 0.009267 2011-04-11 0.005058 2011-04-12 -0.007568 2011-04-13 0.008001 2011-04-14 -0.00607 2011-04-15 -0.009921 2011-04-18 0.006624 2011-04-19 0.006538 2011-04-20 0.01625 2011-04-21 0.01686 2011-04-22 0 2011-04-25 -0.008953 2011-04-26 -0.01038 2011-04-27 0.009355 2011-04-28 -0.02005 2011-04-29 0.007567 2011-05-02 -0.008787 2011-05-03 -0.009324 2011-05-04 0.00906 2011-05-05 0.01203 2011-05-06 -0.005018 2011-05-09 -0.008835 2011-05-10 -0.008339
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103
Enable groupby multiple levels (instead of just a single level)
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0
"2011-08-17T19:04:13Z"
"2011-11-13T01:11:31Z"
"2011-11-13T01:11:31Z"
MEMBER
null
Maybe syntax will look something like: ``` frame.groupby(level=[0,2]) ```
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104
Implement ndarray.take analog on BlockManager
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1
"2011-08-18T21:48:22Z"
"2011-09-29T04:22:46Z"
"2011-09-29T04:22:46Z"
MEMBER
null
To back DataFrame.take with mixed-type data
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README updated for better Github output
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"2011-08-19T08:20:15Z"
"2013-12-04T00:40:17Z"
"2011-08-19T20:25:29Z"
CONTRIBUTOR
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Syntax errors in the README are fixed, so that the presentation in Github is as good as could be. Other changes include some minor changes to wording and added hyperlinks.
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1,445,136
MDU6SXNzdWUxNDQ1MTM2
106
ols should handle a Series (w/ MultiIndex) + LongPanel combo.
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"2011-08-19T17:04:42Z"
"2011-08-23T02:20:04Z"
"2011-08-23T02:20:04Z"
NONE
null
The Series (w/ MultiIndex) is returned by **getitem** on a LongPanel.
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107
Partial fancy indexing using ints does not work on MultiIndex
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1
"2011-08-22T00:39:43Z"
"2011-09-05T20:23:29Z"
"2011-09-05T20:23:29Z"
MEMBER
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``` In [44]: import pandas.rpy.common as com In [45]: cw = com.load_data('ChickWeight') Chick weight 1 0.0 10.5 41.4 2.0 10.5 47.25 4.0 10.11 56.47 6.0 10.11 66.79 8.0 10.11 79.68 10.0 10.11 93.05 12.0 10.11 108.5 14.0 9.778 123.4 16.0 9.471 144.6 18.0 9.471 158.9 20.0 9.471 170.4 21.0 9.562 177.8 2 0.0 25.5 40.7 2.0 25.5 49.4 4.0 25.5 59.8 6.0 25.5 75.4 8.0 25.5 91.7 In [47]: cw.groupby(['Diet', 'Time']).mean().ix[1] Out[47]: Chick 10.5 weight 47.25 ```
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108
Does LongPanel need to exist?
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"2011-08-24T03:45:52Z"
"2011-12-29T05:21:19Z"
"2011-12-29T05:21:19Z"
MEMBER
null
Deal with this question in pandas 0.5
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1,477,071
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109
Enable sum/mean/std etc. on DataFrame to work on multi-level data
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110
Review DataFrame.{sum,mean,min,max,product,std,...} for behavior in the all-NA case
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111
Store level naming information in MultiIndex, for groupby, cross-tabulation, etc.
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112
.stack() does not yet work when MultiIndex already present
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1
"2011-08-25T18:48:29Z"
"2012-02-09T21:20:29Z"
"2011-09-06T04:14:42Z"
MEMBER
null
This will not be dealt with in 0.4 unless I get a lot of energy
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113
Enhance droplevel integration when MultiIndex present
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114
Implement "margins" for pivot table / cross-tabulation support
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115
Enable .join methods for DataFrame / WidePanel to join multiple objects at once
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0
"2011-08-28T00:16:21Z"
"2012-01-05T22:02:32Z"
"2012-01-05T22:02:32Z"
MEMBER
null
Want to do stuff like: ``` df.join([df2, df2, df3], how='outer') ```
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baseball.csv
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1
"2011-08-30T19:10:00Z"
"2011-09-15T04:25:17Z"
"2011-09-15T04:25:17Z"
NONE
null
It seems like baseball.csv, used in pandas/doc/source/basic.rst, is not in the files. This causes docs to build incorrectly for commands 69-71 in that file.
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117
Added baseball.csv
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4
"2011-08-30T20:09:28Z"
"2014-07-26T13:07:57Z"
"2011-09-13T00:03:55Z"
NONE
null
This seems to work. Was that what you had in mind?
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118
Implement fancy indexing on WidePanel
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0
"2011-09-01T19:48:56Z"
"2011-09-09T01:53:51Z"
"2011-09-09T01:53:51Z"
MEMBER
null
This needs to get done for 0.4 I've decided.
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119
Rename WidePanel to simply Panel
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"2011-09-01T19:50:13Z"
"2011-09-08T02:01:25Z"
"2011-09-08T02:01:25Z"
MEMBER
null
Also going to do this for the 0.4 release. WidePanel will just be an alias for Panel. The name is too confusing.
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120
Sortedness problems with MultiIndex
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"2011-09-02T20:11:06Z"
"2014-07-01T02:55:23Z"
"2011-09-05T20:39:52Z"
MEMBER
null
Take this example: arrays = [['bar', 'bar', 'baz', 'baz', 'qux', 'qux', 'foo', 'foo'], ['one', 'two', 'one', 'two', 'one', 'two', 'one', 'two']] tuples = zip(*arrays) tuples index = MultiIndex.from_tuples(tuples) s = Series(randn(8), index=index) This does not yield the expected result: s['qux']
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121
Write / integrate Cython sortedness check in MultiIndex
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"2011-09-02T20:15:36Z"
"2011-09-05T20:18:30Z"
"2011-09-05T20:18:30Z"
MEMBER
null
Otherwise people (myself included) using MultiIndex might shoot themselves in the foot. Cost of checking should be relatively minimal.
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122
Implement faster IntIndex class
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"2011-09-03T22:51:01Z"
"2011-10-02T02:57:22Z"
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123
Enable groupby to be used on ndarrays, record arrays
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"2011-09-04T02:07:02Z"
"2016-01-14T21:28:48Z"
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124
Get view when selecting from hierarchical columns in DataFrame
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"2011-09-05T20:00:39Z"
"2011-09-05T20:17:56Z"
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I think it currently reindexes
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Enable shallow copy of BlockManager
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"2011-09-05T22:07:23Z"
"2011-10-02T02:54:19Z"
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MEMBER
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So axis assignment doesn't blow up the world
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Add add_prefix/suffix methods to DataFrame
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"2011-09-08T03:57:15Z"
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Basically one-liners
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timeRule -> time_rule renaming + deprecation warnings
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Objects with hierarchical index cannot be saved using HDFStore
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This really should get done for 0.4
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Added function to pull data from Yahoo! finance, FRED, and Ken French's website.
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"2011-09-07T02:04:13Z"
"2011-09-08T02:24:19Z"
"2011-09-07T20:15:43Z"
CONTRIBUTOR
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The goal is to make it easy to pull in data off the web from various different sources using the same consistent framework. As an example: from pandas.io.data import DataReader gs = DataReader("GS", "yahoo")
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ENH: Add join to Panel
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"2011-09-08T18:10:15Z"
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CONTRIBUTOR
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This joins on indices only. It doesn't look like Panel._data.join_on a key is set up to handle multiple indices. You may want to implement it higher up in NDFrame, but this worked for my use case.
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GroupBy.apply can't yield Series with DataFrame input
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2
"2011-09-08T22:32:28Z"
"2011-09-09T03:11:08Z"
"2011-09-09T03:07:28Z"
MEMBER
null
``` In [23]: import pandas.util.testing as tm In [24]: df = tm.makeTimeDataFrame() In [25]: df.groupby(lambda x: x.month).count() Out[25]: A B C D 1 21 21 21 21 2 9 9 9 9 In [26]: df.groupby(lambda x: x.month).apply(len) Exception you want to get a Series like: 1 21 2 9 ```
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Enable GroupBy agg/transform/apply to take *args, **kwargs
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1
"2011-09-08T22:34:50Z"
"2011-09-09T04:47:36Z"
"2011-09-09T04:47:36Z"
MEMBER
null
``` def apply(self, f, *args, **kwargs): pass ```
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Multi-key groupby fails with multiple functions
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"2011-09-09T02:27:47Z"
"2011-09-09T03:06:57Z"
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MEMBER
null
Chris Jordan-Squire said: If I had some DataFrame with a bunch of columns, including, say 'char1', 'char2', and 'float' then df.groupby('char1')['float'].agg([np.mean, np.std]) works but df.groupby(['char1', 'char2'])['float'].agg([np.mean, np.std]) throws TypeError: 'list' object is not callable.
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Partial multiple selection in advanced indexing
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0
"2011-09-13T01:27:21Z"
"2012-03-13T22:15:54Z"
"2012-03-13T22:15:52Z"
MEMBER
null
``` foo bar one two three one two A 0.1241 0.0009403 -0.8312 -0.8608 0.1198 B 0.3026 1.344 -2.37 0.5601 -1.064 C 0.5238 -0.7135 -1.861 -1.266 0.3329 ``` Want to be able to do ``` df.ix[:, ['bar', 'foo']] ```
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Setting single column in mixed type frame throws exception
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0
"2011-09-13T01:30:09Z"
"2011-09-20T16:30:48Z"
"2011-09-20T16:30:48Z"
MEMBER
null
This raises an exception ``` df = DataFrame(randn(5, 3), index=labels, columns=['foo', 'bar', 'baz']) df['str'] = 'value' df.ix[::2, 'str'] = nan ```
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minor: just removed pasting of import of datetime into version.py
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"2011-09-13T15:37:44Z"
"2014-07-02T21:11:05Z"
"2011-09-17T01:35:07Z"
CONTRIBUTOR
null
so to avoid change of file while doing setup.py operations, removing pasting of the import of datetime into version.py
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137
Enh tests compat pytables 2.1
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"2011-09-13T21:08:05Z"
"2014-06-16T08:10:47Z"
"2011-09-17T01:31:25Z"
CONTRIBUTOR
null
unfortunately on Debian systems we still have pytables 2.1; but it still would be nice to have pandas' unittests to pass with skips but without an error or failure -- major incompatibility is absense of blosc compressor. This changes make those tests conditional on the version of pytables being at least 2.2 to test blosc
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DataFrame repr fails if a column contains tuples
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"2011-09-22T13:45:44Z"
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Removed warnings when compiling using MSVC/Mingw under 64bit Windows
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BUG: changed index types to Py_ssize_t to use 64-bit indexes on 64 bit machines. Compiles on Windows-7 64bit with just a few warnings remaining (of initially hundreds) that I cannot fix since they seem to be upstream in cython. C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -ID:\Python27\lib\site-packages\numpy\core\include -ID:\Python27\include -ID:\Python27\PC /Tcpandas\src\tseries.c /Fobuild\temp.win-amd64-2.7\Release\pandas\src\tseries.obj tseries.c pandas\src\tseries.c(13717) : warning C4244: '+=' : conversion from 'Py_ssize_t' to 'long', possible loss of data pandas\src\tseries.c(13727) : warning C4244: '+=' : conversion from 'Py_ssize_t' to 'long', possible loss of data pandas\src\tseries.c(17890) : warning C4244: 'function' : conversion from 'Py_ssize_t' to 'int', possible loss of data pandas\src\tseries.c(23257) : warning C4244: 'function' : conversion from '__int64' to 'long', possible loss of data pandas\src\tseries.c(26305) : warning C4267: '=' : conversion from 'size_t' to 'char', possible loss of data pandas\src\tseries.c(26316) : warning C4267: 'initializing' : conversion from 'size_t' to 'int', possible loss of data C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:D:\Python27\libs /LIBPATH:D:\Python27\PCbuild\amd64 /EXPORT:init_tseries build\temp.win-amd64-2.7\Release\pandas\src\tseries.obj /OUT:build\lib.win-amd64-2.7\pandas_tseries.pyd /IMPLIB:build\temp.win-amd64-2.7\Release\pandas\src_tseries.lib /MANIFESTFILE:build\temp.win-amd64-2.7\Release\pandas\src_tseries.pyd.manifest tseries.obj : warning LNK4197: export 'init_tseries' specified multiple times; using first specification Creating library build\temp.win-amd64-2.7\Release\pandas\src_tseries.lib and object build\temp.win-amd64-2.7\Release\pandas\src_tseries.exp C:\Program Files\Microsoft SDKs\Windows\v6.0A\bin\x64\mt.exe -nologo -manifest build\temp.win-amd64-2.7\Release\pandas\src_tseries.pyd.manifest -outputresource:build\lib.win-amd64-2.7\pandas_tseries.pyd;2 cythoning pandas\src\sparse.pyx to pandas\src\sparse.c building 'pandas._sparse' extension C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -ID:\Python27\lib\site-packages\numpy\core\include -ID:\Python27\include -ID:\Python27\PC /Tcpandas\src\sparse.c /Fobuild\temp.win-amd64-2.7\Release\pandas\src\sparse.obj sparse.c pandas\src\sparse.c(4846) : warning C4244: '+=' : conversion from 'Py_ssize_t' to 'long', possible loss of data pandas\src\sparse.c(7557) : warning C4244: '+=' : conversion from 'Py_ssize_t' to 'long', possible loss of data pandas\src\sparse.c(16613) : warning C4244: 'function' : conversion from '__int64' to 'long', possible loss of data pandas\src\sparse.c(19732) : warning C4267: '=' : conversion from 'size_t' to 'char', possible loss of data pandas\src\sparse.c(19743) : warning C4267: 'initializing' : conversion from 'size_t' to 'int', possible loss of data C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\link.exe /DLL /nologo /INCREMENTAL:NO /LIBPATH:D:\Python27\libs /LIBPATH:D:\Python27\PCbuild\amd64 /EXPORT:init_sparse build\temp.win-amd64-2.7\Release\pandas\src\sparse.obj /OUT:build\lib.win-amd64-2.7\pandas_sparse.pyd /IMPLIB:build\temp.win-amd64-2.7\Release\pandas\src_sparse.lib /MANIFESTFILE:build\temp.win-amd64-2.7\Release\pandas\src_sparse.pyd.manifest
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ENH: Add panel_index convenience function
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"2011-09-14T21:43:18Z"
"2014-08-02T09:06:16Z"
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CONTRIBUTOR
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The convenience function I've been using. Don't know if it belongs in pandas or where.
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ENH: Allow to sort on index level by name
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"2011-09-14T23:17:01Z"
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CONTRIBUTOR
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Trying to implement the easy items on my wishlist. Allows sorting by the name of the level in the Index as well as its index.
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ENH: Allow unstacking by level name
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"2011-09-14T23:59:36Z"
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CONTRIBUTOR
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More low-hanging fruit. Anywhere the indices have names, might as well be able to use them.
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DataFrame.to_csv bug: headers mis-aligned
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pandas version: 0.4.0 from pypi The problem is that there is no header for the index column: In [1]: import pandas In [2]: d = pandas.DataFrame(randn(3, 2), range(3), ['a', 'b']) In [3]: d.to_csv('tmp.csv') In [4]: cat tmp.csv a,b 0,-0.244543341458,-1.50542482731 1,-1.02524916375,0.279887233706 2,0.0657877607121,-0.786951623121
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144
DataFrame.corrwith fails with object columns
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Add dtypes property to DataFrame
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@property def dtypes(self): return np.sort( Series( dict( (x,self[x].dtype ) for x in self.columns ) ) )
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Minor change to csv reading
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Hi Wes Firstly, congrats on such an amazing project! I love prototyping in python / numpy / ipython, but I always envy some of R's features. I tried pandas out about 9 months ago and although it was interesting, it seemed very rough around the edges. Now, however, it is looking really polished and I've been using it for prototyping and testing some trading models, and everything works extremely well. I hope it keeps growing, together with the integration with scikits statsmodels/timeseries and maybe even scikits.learn in future ... Anyway, as I was starting to dive into the code, I came across the <code>read_csv</code> functions and noticed that there was full duplication in <code>read_table</code>. The <code>csv</code> module in python actually has full support for arbitrary delimiters, so there is no need for the duplication. Also, there is <code>csv.Sniffer().sniff(sample)</code> that attempts to sniff out the delimiter automatically. This commit tries to "magically" handle any arbitrary CSV file without needing to specify a separator, whether separated by blank spaces, tabs, commas, semicolons or other weird separators (I have a file at work with "^" separators :). If it doesn't work, one can fall back on specifying the separator (so <code>read_csv</code> looks more like <code>read_table</code>). In future it could make sense to simply have one <code>read_data</code> or <code>read_table</code> function. Incidentally, the <code>csv.Sniffer()</code> also tries to sniff out other things like quote escaping and double quoting, but this commit effectively only uses it for the delimiter. If problems with quote / string escaping crop up with users one could always let the sniffer try to figure out the full dialect.
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Sortlevel / pivot may silently misalign data with duplicate labels
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Failing Test on Ambiguous Date/Time on Ubuntu 10.04
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Failing Test on Ambiguous Date/Time on Ubuntu 10.04 No milestone No one is assigned Edit I've installed the dependencies as well as Cython and am getting a failing test on Ubuntu 10.04: FAIL: test_with_tzinfo_ambiguous_times (pandas.tests.test_daterange.TestDateRange) Traceback (most recent call last): File "/home/ryan/Code/pandas/pandas/tests/testdaterange.py", line 204, in test_with_tzinfo_ambiguous_times self.assert(not dr.tz_validate()) AssertionError
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Failing test on OLS on Ubuntu 10.04
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I've installed the dependencies as well as Cython and am getting a failing test on Ubuntu 10.04: FAIL: testOLSWithDatasets (pandas.stats.tests.test_ols.TestOLS) Traceback (most recent call last): File "/home/ryan/Code/pandas/pandas/stats/tests/test_ols.py", line 56, in testOLSWithDatasets self.checkDataSet(datasets.ccard.load(), 39, 49) # one col in X all 0s File "/home/ryan/Code/pandas/pandas/stats/tests/test_ols.py", line 67, in checkDataSet self.checkOLS(exog, endog, x, y) File "/home/ryan/Code/pandas/pandas/stats/tests/test_ols.py", line 86, in checkOLS assert_almost_equal(reference.params, result._beta_raw) File "/home/ryan/Code/pandas/pandas/util/testing.py", line 76, in assert_almost_equal np.testing.assert_equal(len(a), len(b)) File "/usr/lib/python2.6/dist-packages/numpy/testing/utils.py", line 313, in assert_equal raise AssertionError(msg) AssertionError: Items are not equal: ACTUAL: 4 DESIRED: 5
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Document swaplevel method
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151
ENH: improve DataFrame read_csv / to_csv for Index/MultiIndex
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"2011-09-17T17:56:07Z"
"2014-06-19T05:29:22Z"
"2011-09-22T14:03:03Z"
CONTRIBUTOR
null
2 issues for DataFrame.to_csv 1 ) If header and index are True, you should write something for an index header, even if index_level is None. 2) If given a MultiIndex, don't want to just call str() on each element. Also fixed read_csv to take an iterable for index_col so that I could write tests. I haven't looked at the similar methods in Series or the other to_\* methods yet. This is all I needed at the moment. Aside: it looks like in test_frame setUp isn't a classmethod and is called for each test method. Not a big deal, but might be a little heavy in the test suite.
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152
Write fast OHLC aggregator
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"2011-09-17T21:36:13Z"
"2012-04-06T03:31:01Z"
"2012-04-06T03:31:01Z"
MEMBER
null
To work with GroupBy
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Implement custom "grouper" class
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"2012-05-01T18:56:10Z"
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MEMBER
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Special grouping objects which will result in more optimal performance on, for example, ordered time series data
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Series.shift fails on integer arrays due to NaN handling
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Weights option should be removed in OLS classes
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Integrate openpyxl into pandas.io.parsers
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"2012-02-09T16:26:14Z"
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https://api.github.com/repos/pandas-dev/pandas/issues/157
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MDU6SXNzdWUxNjc0Njkz
157
Implement optimized DataFrame.join and reindex methods for ordered time series data
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"2011-09-18T23:43:14Z"
"2011-10-02T02:47:02Z"
"2011-10-02T02:47:02Z"
MEMBER
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1,680,644
MDU6SXNzdWUxNjgwNjQ0
158
Implement no copy item deletion in BlockManager
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0
"2011-09-19T18:11:17Z"
"2011-12-12T20:00:13Z"
"2011-12-12T20:00:13Z"
MEMBER
null
Should just split a block into two views on the original data. This won't free memory but will be much faster.
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https://api.github.com/repos/pandas-dev/pandas/issues/159
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1,683,465
MDU6SXNzdWUxNjgzNDY1
159
Add level keyword to .drop method
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0
"2011-09-19T23:09:12Z"
"2012-03-13T20:41:30Z"
"2012-03-13T20:41:30Z"
MEMBER
null
To drop values from a level in a MultiIndex
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MDU6SXNzdWUxNjg0MDUx
160
as_index in GroupBy does not work properly with a single key
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"2011-09-20T01:05:12Z"
"2011-09-22T15:22:03Z"
"2011-09-22T15:22:03Z"
MEMBER
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MDU6SXNzdWUxNjg5MDgx
161
Document combine_first and any related methods
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"2011-09-20T15:55:00Z"
"2011-10-22T03:17:52Z"
"2011-10-22T03:17:52Z"
MEMBER
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1,701,054
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162
Speed optimization: Block do not use their own Index objects
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"2011-09-21T16:03:43Z"
"2014-04-25T14:26:32Z"
"2014-04-25T14:26:32Z"
MEMBER
null
A lot of time is spent in Index.**new** in some computations. I do not think there's an essential need to create Index objects when you could just have an array of integers referring back to the single Index having all the column names for the DataFrame. This would also facilitate renaming as renaming would only need to happen in one place. Definitely not a trivial refactor and would unfortunately break legacy pickles yet again. "For the greater good"
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163
Move Block internals code to Cython
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2
"2011-09-21T16:05:33Z"
"2016-01-14T21:29:18Z"
"2016-01-14T21:29:18Z"
MEMBER
null
I'm not sure if there's any way to not break legacy pickles during this process. The Blocks and BlockManager should be extension classes
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Add name/names field to Index and integrate
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0
"2011-09-22T14:05:38Z"
"2011-11-07T05:28:11Z"
"2011-11-07T05:28:11Z"
MEMBER
null
Want stack/unstack to not discard names. Should be careful to raise an exception when there are duplicate names and the level name is used
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165
Document CSV/table -> DataFrame with MultiIndex
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Implement multiple-function aggregation with DataFrame in groupby
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0
"2011-09-22T15:05:29Z"
"2012-01-12T02:32:02Z"
"2012-01-12T02:32:02Z"
MEMBER
null
Result should have a hierarchical index in the columns. Behavior with as_index=False is somewhat ambiguous, though
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167
Possible interactions with taldcroft/asciitable?
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"2014-06-03T01:13:17Z"
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DateRange.copy bug
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"2011-09-25T05:16:37Z"
"2011-09-25T05:16:37Z"
MEMBER
null
tzinfo attribute does not make it into the copy
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issue moving from 0.3.0 to v0.4.0
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3
"2011-09-23T18:56:20Z"
"2011-09-25T04:55:27Z"
"2011-09-25T04:55:27Z"
CONTRIBUTOR
null
0.4.0 seems to use np.add.reduceat() where 0.3.0 doesn't which is causing issues with some code I run during the evaluation of the beta in a PanelOLS. In particular, during the evaluation of self._y_trans.count() in _time_obs_count() there is a seg fault. I'm not familiar with the internals of numpy or pandas but it looks like 0.4.0 passes in a zero length array for the output. The debugger won't go into the np.add.reduceat() code but it segfaults as soon as I make the next step python -m pdb valModel1.py b /usr/local/lib/python2.7/site-packages/pandas/core/series.py:505 > /usr/local/lib/python2.7/site-packages/pandas/core/series.py(505)_count_level() > -> np.add.reduceat(mask, locs[start:end], out=out) > (Pdb) np.shape(mask) > (0,) > (Pdb) np.shape(locs) > (271,) > (Pdb) np.shape(out) > (0,) And then seg faults Its possible this is an underlying numpy issue but everything works fine on the same system with 0.3.0. If this is of interest to you I can give you more info. I'm running Freebsd 8.1 with the following packages and pandas compiled from a git pull python27-2.7.1_1 cython-0.14.1 py27-numpy-1.5.1,1 py27-matplotlib-1.0.1 py27-scipy-0.8.0_1 py27-dateutil-1.5 py27-setuptools-0.6c11_1 py27-nose-1.0.0 py27-pytz-2011c Best Dan
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170
Implement frequency table function a la table in R
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171
Add Panel.dropna method of some kind
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SparseSeries.__add__ perf bad with large # of blocks
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"2011-09-25T15:28:08Z"
"2011-10-15T20:43:35Z"
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``` python In [44]: foo = Series(np.random.randn(100000)) In [45]: bar = Series(np.random.randn(100000)) In [46]: foo[::3] = np.nan In [47]: bar[::4] = np.nan In [48]: sfoo = foo.to_sparse(kind='integer') In [49]: sbar = bar.to_sparse(kind='integer') In [52]: timeit sfoo + sbar 100 loops, best of 3: 15.8 ms per loop # implicitly kind='block In [53]: sbar = bar.to_sparse() In [54]: sfoo = foo.to_sparse() In [55]: timeit sfoo + sbar 1 loops, best of 3: 217 ms per loop ```
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173
Implement sparse array / accumulator object
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"2011-09-25T15:38:55Z"
"2011-12-12T04:40:04Z"
"2011-12-12T04:40:04Z"
MEMBER
null
To pair well with other indexed sparse data structures
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174
Add axis= keyword to DataFrame.fillna
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"2012-03-14T20:14:47Z"
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175
prettytable library integration for nice console output
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"2011-09-25T15:53:28Z"
"2011-11-06T01:44:27Z"
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MEMBER
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This would be really nice for contingency/frequency tables and for showing the level names in MultiIndex objects
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Join general speed optimizations
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1
"2011-09-25T16:30:03Z"
"2011-09-29T01:06:12Z"
"2011-09-29T01:06:12Z"
MEMBER
null
Need: - Take functions for each of the major dtypes: bool, object, float, integer - Routines for joining together consolidated blocks using the above routines - Get rid of putmask business
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Write Cython code generation for take routines once stabilized
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"2011-09-26T20:20:13Z"
"2012-02-09T21:20:17Z"
"2011-09-27T04:03:41Z"
MEMBER
null
Similar to bottleneck
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DateRange.union speed shortcuts don't work in some cases
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0
"2011-09-27T04:30:31Z"
"2011-10-01T20:30:39Z"
"2011-10-01T20:30:39Z"
MEMBER
null
Not good: ``` python In [15]: rng = DateRange('1/1/2000', periods=100000, offset=datetools.Minute()) In [16]: timeit rng.union(rng[:-1]) 10 loops, best of 3: 93.9 ms per loop In [17]: timeit rng.intersection(rng[:-1]) 100 loops, best of 3: 12.2 ms per loop ```
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179
Pre-epoch dates giving OverflowError in mktime with HDFStore
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7
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"2012-04-22T02:11:51Z"
"2012-04-22T02:11:51Z"
NONE
null
I am having trouble with pre-epoch dates working with HDFStore, getting an OverflowError in mktime, as shown below. Sample code is: ``` import numpy as np from pandas import * def panda_test(): # generate some data data = np.random.rand(50,5) # generate some dates dates = DateRange('1/1/1969',periods=50) # generate column headings cols = ['A','B','C','D','E'] df = DataFrame(data,index=dates,columns=cols) # save to HDF5Store store = HDFStore('bugzilla.h5', mode='w') store['df'] = df # This gives: OverflowError: mktime argument out of range store.close() if __name__ == '__main__': panda_test() ``` The error I get is: ``` Traceback (most recent call last): File "C:\Users\Salman Ansari\Documents\Python\VAR\src\bugzilla.py", line 27, in <module> panda_test() File "C:\Users\Salman Ansari\Documents\Python\VAR\src\bugzilla.py", line 22, in panda_test store['df'] = df File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 122, in __setitem__ self.put(key, value) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 260, in put comp=compression) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 327, in _write_to_group wrapper(value) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 325, in <lambda> wrapper = lambda value: handler(group, value) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 335, in _write_frame self._write_block_manager(group, df._data) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 346, in _write_block_manager self._write_index(group, 'axis%d' % i, ax) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 432, in _write_index converted, kind, _ = _convert_index(index) File "C:\Python27\lib\site-packages\pandas-0.4.0-py2.7-win32.egg\pandas\io\pytables.py", line 698, in _convert_index for v in values], dtype=np.int64) OverflowError: mktime argument out of range Closing remaining open files: bugzilla.h5... done ``` Any ideas, please?
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import pandas
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"2013-12-04T00:40:10Z"
"2011-10-04T15:51:00Z"
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I am getting the following error in Ipython when importing pandas, any ideas? /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/common.py:11: RuntimeWarning: numpy.dtype size changed, may indicate binary incompatibility import pandas._tseries as _tseries /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/common.py:11: RuntimeWarning: numpy.flatiter size changed, may indicate binary incompatibility import pandas._tseries as _tseries /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/common.py:11: RuntimeWarning: numpy.ufunc size changed, may indicate binary incompatibility import pandas._tseries as _tseries /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/sparse.py:22: RuntimeWarning: numpy.dtype size changed, may indicate binary incompatibility from pandas._sparse import BlockIndex, IntIndex /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/sparse.py:22: RuntimeWarning: numpy.flatiter size changed, may indicate binary incompatibility from pandas._sparse import BlockIndex, IntIndex /Library/Python/2.6/site-packages/pandas-0.4.1-py2.6-macosx-10.6-universal.egg/pandas/core/sparse.py:22: RuntimeWarning: numpy.ufunc size changed, may indicate binary incompatibility from pandas._sparse import BlockIndex, IntIndex
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as_index in GroupBy still not fully implemented
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1
"2011-09-28T02:32:20Z"
"2011-10-01T19:56:43Z"
"2011-10-01T19:56:43Z"
MEMBER
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``` python df = DataFrame({'A' : ['foo', 'bar', 'foo', 'bar', 'foo', 'bar', 'foo', 'foo'], 'B' : ['one', 'one', 'two', 'three', 'two', 'two', 'one', 'three'], 'C' : randn(8), 'D' : randn(8)}) df grouped = df.groupby('A') grouped = df.groupby('A') grouped.agg(np.sum) grouped = df.groupby('A', as_index=False) grouped.agg(np.sum) grouped.sum() ``` Adding @laserson so notifications go through
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DataFrame to_csv() ignores nanRep argument for float32 input
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import numpy as np import pandas d = np.random.randn(8, 4) df = pandas.DataFrame(d) df[1][:] = np.nan df.to_csv('pandas-success.csv', nanRep='999') d = np.asarray(np.random.randn(8, 4), dtype=np.float32) df = pandas.DataFrame(d) df[1][:] = np.nan df.to_csv('pandas-fail.csv', nanRep='999') After running this with pandas 0.4.1 the file pandas-success.csv contains the nanRep string '999' as defined, but the file pandas-fail.csv contains the string 'nan' instead.
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183
nosetests failures and errors
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"2011-09-28T18:24:37Z"
"2011-09-28T19:50:47Z"
"2011-09-28T19:50:47Z"
NONE
null
I am trying to build the latest version of pandas on Mac OS X 10.6.8. I am using Enthought's python distribution: Python 2.7.2 |EPD 7.1-2 (64-bit). I downloaded the source from github, used python setup.py install, and it appeared to build without error. When I run nosetests pandas, I get some errors and failures (output below). I thought I had all the relevant dependencies installed. Any suggestions? Thanks for your help and for a wonderful package. Thanks. Output: ..............E.........................................F......................../Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2895: FutureWarning: asMatrix is deprecated. Use 'as_matrix' or .values instead "instead", FutureWarning) /Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2890: FutureWarning: Replace usage of .cols() with .columns, will be removed in next release "removed in next release", FutureWarning) .....F/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: combineFirst is deprecated. Use combine_first instead FutureWarning) ..F../Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: toDict is deprecated. Use to_dict instead FutureWarning) ................../Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2937: FutureWarning: dropEmptyRows is deprecated. Use dropna(how='all') FutureWarning) ./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2962: FutureWarning: dropEmptyRows is deprecated. Use dropna() FutureWarning) .../Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: _firstTimeWithValue is deprecated. Use first_valid_index instead FutureWarning) /Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: _lastTimeWithValue is deprecated. Use last_valid_index instead FutureWarning) ./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2901: FutureWarning: fromRecords is deprecated. Use 'from_records' instead "instead", FutureWarning) /Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:361: FutureWarning: indexField argument is deprecated. Use index instead "instead", FutureWarning) /Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: toRecords is deprecated. Use to_records instead FutureWarning) .E.E.E/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2990: FutureWarning: tgroupby is deprecated. Use groupby with axis=1 FutureWarning) .........................E./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2884: FutureWarning: Replace usage of .rows() with .index, will be removed in next release "in next release", FutureWarning) ..E.......E./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2973: FutureWarning: tapply is deprecated. Use apply(f, axis=1) FutureWarning) ./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: toCSV is deprecated. Use to_csv instead FutureWarning) /Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2907: FutureWarning: fromcsv is deprecated. Use 'from_csv' instead "instead", FutureWarning) ./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py:2878: FutureWarning: toDataMatrix will disappear in next release as there is no longer a DataMatrix class FutureWarning) ../Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: toString is deprecated. Use to_string instead FutureWarning) E............./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: asOfDate is deprecated. Use asof instead FutureWarning) F......F....................F...F...........EEE.............E....E.E.E.............E........F........E...E.E.F.E....E.....E.....E............/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: asOf is deprecated. Use asof instead FutureWarning) .....F.............EF......./Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py:152: FutureWarning: merge is deprecated. Use map instead FutureWarning) ..EE.F/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/series.py:1109: FutureWarning: missingAtEnd is deprecated, use na_last FutureWarning) # ..F..........................................................................................E.E......EEEEE..EE..................E.....S.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................S...................... ## ERROR: test_generate (test_daterange.TestGeneration) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_daterange.py", line 20, in test_generate rng2 = list(generate_range(START, END, timeRule='WEEKDAY')) TypeError: generate_range() got an unexpected keyword argument 'timeRule' # ## ERROR: test_get_X_columns (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1499, in test_get_X_columns self.assertEquals(df._get_object_columns(), ['c', 'd']) AttributeError: 'DataFrame' object has no attribute '_get_object_columns' # ## ERROR: test_get_axis (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 74, in test_get_axis self.assertRaises(KeyError, self.klass._get_axis_name, 'foo') File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/unittest/case.py", line 471, in assertRaises callableObj(_args, *_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/generic.py", line 75, in _get_axis_name raise Exception('No axis named %s' % axis) Exception: No axis named foo # ## ERROR: test_groupby (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1199, in test_groupby del stragged['weekday'] File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py", line 937, in **delitem** self._data.delete(key) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/internals.py", line 475, in delete i, _ = self._find_block(item) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/internals.py", line 532, in _find_block self._check_have(item) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/internals.py", line 539, in _check_have raise KeyError('no item named %s' % str(item)) KeyError: 'no item named weekday' # ## ERROR: test_repr (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 347, in test_repr self.empty.info(buffer=buf) TypeError: info() got an unexpected keyword argument 'buffer' # ## ERROR: test_set_index (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 91, in test_set_index self.assertRaises(Exception, self.mixed_frame._set_index, idx[::2]) AttributeError: 'DataFrame' object has no attribute '_set_index' # ## ERROR: test_sum (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1539, in test_sum self._check_statistic(self.empty, 'sum', f) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1511, in _check_statistic assert_series_equal(result, frame.apply(alternative)) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/testing.py", line 115, in assert_series_equal assert(left.dtype == right.dtype) AttributeError: 'DataFrame' object has no attribute 'dtype' # ## ERROR: test_toString (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 376, in test_toString biggie.toString(buffer=buf) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py", line 153, in wrapper return alternative(_args, *_kwargs) TypeError: to_string() got an unexpected keyword argument 'buffer' # ## ERROR: test_constructor_objects_corner (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 110, in test_constructor_objects_corner objects=obj_dm) TypeError: **init**() got an unexpected keyword argument 'objects' # ## ERROR: test_constructor_with_objects (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 63, in test_constructor_with_objects objects=self.mixed_frame.objects) AttributeError: 'DataFrame' object has no attribute 'objects' # ## ERROR: test_copy (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 122, in test_copy self.assert_(copy.objects is not self.mixed_frame.objects) AttributeError: 'DataFrame' object has no attribute 'objects' # ## ERROR: test_fill_corner (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 256, in test_fill_corner obj_result = self.mixed_frame.objects.fillna(value=0) AttributeError: 'DataFrame' object has no attribute 'objects' # ## ERROR: test_get_X_columns (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1499, in test_get_X_columns self.assertEquals(df._get_object_columns(), ['c', 'd']) AttributeError: 'DataFrame' object has no attribute '_get_object_columns' # ## ERROR: test_get_axis (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 74, in test_get_axis self.assertRaises(KeyError, self.klass._get_axis_name, 'foo') File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/unittest/case.py", line 471, in assertRaises callableObj(_args, *_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/generic.py", line 75, in _get_axis_name raise Exception('No axis named %s' % axis) Exception: No axis named foo # ## ERROR: test_groupby (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1199, in test_groupby del stragged['weekday'] File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py", line 937, in **delitem** self._data.delete(key) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/internals.py", line 475, in delete i, _ = self._find_block(item) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/internals.py", line 532, in _find_block self._check_have(item) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/internals.py", line 539, in _check_have raise KeyError('no item named %s' % str(item)) KeyError: 'no item named weekday' # ## ERROR: test_more_constructor (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 45, in test_more_constructor df = DataMatrix(mat, index=[0, 1], columns=[0], dtype=float) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py", line 161, in **init** copy=copy) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/frame.py", line 210, in _init_ndarray raise ValueError('failed to cast to %s' % dtype) ValueError: failed to cast to <type 'float'> # ## ERROR: test_repr (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 347, in test_repr self.empty.info(buffer=buf) TypeError: info() got an unexpected keyword argument 'buffer' # ## ERROR: test_set_index (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 91, in test_set_index self.assertRaises(Exception, self.mixed_frame._set_index, idx[::2]) AttributeError: 'DataFrame' object has no attribute '_set_index' # ## ERROR: test_setitem_ambig (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 184, in test_setitem_ambig self.assert_(dm.objects is None) AttributeError: 'DataFrame' object has no attribute 'objects' # ## ERROR: test_shift_objects (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 209, in test_shift_objects self.assert_(shifted.objects is not None) AttributeError: 'DataFrame' object has no attribute 'objects' # ## ERROR: test_sum (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1539, in test_sum self._check_statistic(self.empty, 'sum', f) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1511, in _check_statistic assert_series_equal(result, frame.apply(alternative)) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/testing.py", line 115, in assert_series_equal assert(left.dtype == right.dtype) AttributeError: 'DataFrame' object has no attribute 'dtype' # ## ERROR: test_toString (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 376, in test_toString biggie.toString(buffer=buf) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/decorators.py", line 153, in wrapper return alternative(_args, *_kwargs) TypeError: to_string() got an unexpected keyword argument 'buffer' # ## ERROR: Failure: ImportError (cannot import name LongPanelIndex) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/nose/loader.py", line 390, in loadTestsFromName addr.filename, addr.module) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/nose/importer.py", line 39, in importFromPath return self.importFromDir(dir_path, fqname) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/nose/importer.py", line 86, in importFromDir mod = load_module(part_fqname, fh, filename, desc) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_panel.py", line 12, in <module> from pandas.core.panel import (WidePanel, LongPanelIndex, LongPanel, ImportError: cannot import name LongPanelIndex # ## ERROR: test_groupby (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 845, in test_groupby agged = grouped.agg(lambda x: group_constants[x.groupName] + x.mean()) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/groupby.py", line 267, in agg return self.aggregate(func, _args, *_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/groupby.py", line 654, in aggregate result = self._aggregate_named(func_or_funcs, _args, *_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/groupby.py", line 732, in _aggregate_named output = func(grp, _args, *_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 845, in <lambda> agged = grouped.agg(lambda x: group_constants[x.groupName] + x.mean()) AttributeError: 'Series' object has no attribute 'groupName' # ## ERROR: test_operators (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 296, in test_operators check(self.ts \* 2) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 284, in check _check_op(other, operator.add) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 279, in _check_op python = series.combineFunc(other, op) AttributeError: 'TimeSeries' object has no attribute 'combineFunc' # ## ERROR: test_operators_corner (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 329, in test_operators_corner deltas = deltas + sub_deltas File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/series.py", line 47, in wrapper arr = op(this_reindexed.values, other_reindexed.values) TypeError: unsupported operand type(s) for +: 'datetime.timedelta' and 'float' # ## ERROR: testOLSWithDatasets (pandas.stats.tests.test_ols.TestOLS) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 52, in testOLSWithDatasets self.checkDataSet(datasets.ccard.load(), skip_moving=True) AttributeError: 'module' object has no attribute 'load' # ## ERROR: test_f_test (pandas.stats.tests.test_ols.TestOLSMisc) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 179, in test_f_test model = ols(y=y, x=x) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: test_r2_no_intercept (pandas.stats.tests.test_ols.TestOLSMisc) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 199, in test_r2_no_intercept model1 = ols(y=y, x=x) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: test_series_rhs (pandas.stats.tests.test_ols.TestOLSMisc) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 239, in test_series_rhs model = ols(y=y, x=x) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: test_summary_many_terms (pandas.stats.tests.test_ols.TestOLSMisc) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 216, in test_summary_many_terms model = ols(y=y, x=x) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: test_various_attributes (pandas.stats.tests.test_ols.TestOLSMisc) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 248, in test_various_attributes model = ols(y=y, x=x, window=20) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(*_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 521, in **init** OLS.**init**(self, y=y, x=x, *_self._args) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in __init__ import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: test_y_predict (pandas.stats.tests.test_ols.TestOLSMisc) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 222, in test_y_predict model1 = ols(y=y, x=x) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: testForSeries (pandas.stats.tests.test_ols.TestPanelOLS) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 492, in testForSeries self.series_x, self.series_y) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 594, in checkForSeries reference = ols(y=series_y, x=series_x, **kwds) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: testNonPooled (pandas.stats.tests.test_ols.TestPanelOLS) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 551, in testNonPooled self.checkNonPooled(y=self.panel_y, x=self.panel_x) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 557, in checkNonPooled result = ols(y=y, x=x, pool=False, **kwds) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/plm.py", line 807, in **init** nw_overlap=nw_overlap) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(**kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in **init** import scikits.statsmodels.api as sm ImportError: No module named api # ## ERROR: test_auto_rolling_window_type (pandas.stats.tests.test_ols.TestPanelOLS) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/tests/test_ols.py", line 633, in test_auto_rolling_window_type window_model = ols(y=y, x=data, window=20, min_periods=10) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/interface.py", line 136, in ols return klass(*_kwargs) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 521, in **init** OLS.**init**(self, y=y, x=x, *_self._args) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/stats/ols.py", line 36, in __init__ import scikits.statsmodels.api as sm ImportError: No module named api # ## FAIL: test_constructor (test_datetools.TestWeekOfMonth) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_datetools.py", line 259, in test_constructor self.assertRaises(Exception, WeekOfMonth, n=2, week=0, weekday=0) AssertionError: Exception not raised # ## FAIL: test_combineAdd (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1370, in test_combineAdd assert_frame_equal(comb, df3) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/testing.py", line 124, in assert_frame_equal assert_series_equal(series, right[col]) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/testing.py", line 115, in assert_series_equal assert(left.dtype == right.dtype) AssertionError # ## FAIL: test_combineFrame (test_frame.TestDataFrame) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 568, in test_combineFrame self.assert_(np.isnan(added['C'][:5]).all()) AssertionError: <pandas.core.series.Series object at 0x10afe8050> is not true # ## FAIL: test_asOfDate (test_index.TestIndex) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_index.py", line 69, in test_asOfDate self.assert_(self.dateIndex.asOfDate(d - timedelta(1)) is None) AssertionError: False is not true # ## FAIL: test_duplicates (test_index.TestIndex) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_index.py", line 24, in test_duplicates self.assertRaises(Exception, Index, [0, 0, 0]) AssertionError: Exception not raised # ## FAIL: test_combineAdd (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 1370, in test_combineAdd assert_frame_equal(comb, df3) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/testing.py", line 124, in assert_frame_equal assert_series_equal(series, right[col]) File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/util/testing.py", line 115, in assert_series_equal assert(left.dtype == right.dtype) AssertionError # ## FAIL: test_combineFrame (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_frame.py", line 568, in test_combineFrame self.assert_(np.isnan(added['C'][:5]).all()) AssertionError: <pandas.core.series.Series object at 0x10c2317d0> is not true # ## FAIL: test_reindex_bool (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 222, in test_reindex_bool self.assert_(reindexed.values.dtype == np.float_) AssertionError: False is not true # ## FAIL: test_setitem_corner (test_matrix.TestDataMatrix) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_matrix.py", line 143, in test_setitem_corner self.assertEqual(len(df.columns), 1) AssertionError: 2 != 1 # ## FAIL: test_constructor (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 47, in test_constructor self.assertRaises(Exception, Series, [0, 1, 2], index=None) AssertionError: Exception not raised # ## FAIL: test_groupby_transform (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 866, in test_groupby_transform lambda x: x.mean()) AssertionError: Exception not raised # ## FAIL: test_operators_frame (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 342, in test_operators_frame self.assertRaises(Exception, self.ts.**pow**, df) AssertionError: Exception not raised # ## FAIL: test_preserveRefs (test_series.TestSeries) Traceback (most recent call last): File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/pandas/core/tests/test_series.py", line 720, in test_preserveRefs self.assertFalse(np.isnan(self.ts[9])) AssertionError: True is not false --- Ran 1273 tests in 18.578s FAILED (SKIP=2, errors=36, failures=13)
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https://api.github.com/repos/pandas-dev/pandas/issues/184
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1,771,005
MDU6SXNzdWUxNzcxMDA1
184
Consistently set group name on groupby groups
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0
"2011-09-29T01:29:57Z"
"2012-05-15T00:15:43Z"
"2012-05-15T00:15:43Z"
MEMBER
null
Currently not done consistently, a couple of functions do it but it should be done everywhere preferably...
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1,771,030
MDU6SXNzdWUxNzcxMDMw
185
Advanced indexing .ix does not handle step with integer labels
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0
"2011-09-29T01:31:48Z"
"2011-09-30T01:05:12Z"
"2011-09-30T01:05:08Z"
MEMBER
null
Should raise exception: ``` python In [14]: import pandas.util.testing as tm In [15]: df = tm.makeTimeDataFrame() In [16]: df.index = np.arange(len(df)) In [17]: df.ix[:20:2, :] Out[17]: A B C D 0 0.7272 2.299 0.6004 -1.295 1 0.1992 -0.6554 -0.6646 2.679 2 -2.888 -0.8418 0.9162 -0.423 3 0.1537 2.135 0.2564 0.7554 4 2.036 1.728 -1.055 0.59 5 -0.1152 -1.131 0.1782 0.89 6 -0.1432 -0.5045 -1.04 -1.235 7 0.4615 0.6217 0.652 0.7405 8 0.9663 -0.8796 1.295 -1.333 9 -0.2225 -0.6098 -0.1984 -0.534 10 0.3549 2.245 1.554 1.43 11 -1.241 -1.069 -1.85 -1.263 12 -1.484 -0.01338 0.4773 -1.221 13 0.8658 1.43 -0.005297 0.5183 14 -0.4009 -0.5202 -0.6209 -1.438 15 0.756 0.2559 0.4617 0.3081 16 0.7314 1.809 1.922 -0.1331 17 -1.633 -1.026 -1.327 -0.3797 18 0.731 -0.1977 1.26 0.9189 19 0.1858 -0.9953 0.8936 1.237 20 -1.195 -0.7265 -0.7423 -0.8248 ```
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186
Update README file to note that Cython is required for build
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"2011-09-29T04:25:47Z"
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NONE
null
It is missing from the dependencies list.
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187
notnull very slow compared with 0.3.0
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"2011-10-01T01:41:57Z"
"2011-10-01T01:41:57Z"
MEMBER
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from Rory Grandin on the pystatsmodels mailing list ``` I'm not sure if anyone else has come across this, but I use notnull extensively for checking if individual values are valid, and when switching from pandas 0.3 to 0.4, noticed an almost fivefold increase in the runtime for notnull. I think this is because notnull now calls isnull, thus adding an additional burden. I've managed to reduce the overhead somewhat by using the recommended lazy importing structure from the performance tips on the python wiki (http://wiki.python.org/ moin/PythonSpeed/PerformanceTips#Import_Statement_Overhead). The call to isnull now takes about a third of the time it was before. Please let me know if you need any more information, I'm a bit new to this, and would like to help out in any way I can :) ```
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188
Add method to MultiIndex for retrieving level values
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"2011-10-02T02:46:03Z"
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MEMBER
null
Per mailing list question from @laserson, this should look like: ``` python level_values = np.asarray(index.levels[i]).take(index.labels[i]) ``` documentation and tests needed
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Add fast pairwise rolling correlation function
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"2011-12-12T05:20:53Z"
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@idrisr ``` python def rolling_corr_pairwise(df, window): all_results = {} for col, left in df.iteritems(): all_results[col] = col_results = {} for col, right in df.iteritems(): col_results[col] = rolling_corr(left, right, window) return Panel(all_results) ```
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pytz integration with fast local tz conversions with datetime64 dtype
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SQLalchemy interface in pandas.io
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192
setupegg.py develop won't invoke Cython
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193
Add out argument to common.take_1d
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"2011-10-03T01:36:51Z"
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MEMBER
null
Like take_2d
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adding covariance to dataframe
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0
"2011-10-04T07:06:35Z"
"2011-11-14T03:10:39Z"
"2011-11-14T03:10:39Z"
NONE
null
here is a sample implementation for dataframe. ``` python def cov(self): """ Compute pairwise covariance of columns Returns ------- y : DataFrame """ cols = self.columns std = np.diag(self.std()) corr = self.corr() result = np.dot(np.dot(std, corr), std) return self._constructor(result , index=cols, columns=cols) ```
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195
DateRange not only with datetime() but also with date().
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"2011-10-04T13:53:12Z"
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For daily data, datetime.date may be a more natural choice than datetime.datetime. How about allowing DateRange to work with date as well as datetime? For instance, DateRange(date(1990,1,1), date(1990,12,31))
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196
summary() method to all pandas objects.
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"2011-10-04T13:42:05Z"
"2011-10-09T17:41:35Z"
"2011-10-09T17:41:35Z"
NONE
null
I always envy summary() function in R. It is really useful in displaying basic statistics of each object. How about supporting the method for all pandas objects?
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Raise SkipTest if no xlrd
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"2011-10-06T15:57:23Z"
"2011-10-06T15:57:23Z"
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1,829,001
MDU6SXNzdWUxODI5MDAx
198
MultiIndex Bugs (may be related to failure of get_tuple_index)
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"2011-10-05T22:34:32Z"
"2011-10-06T18:30:13Z"
"2011-10-05T23:16:20Z"
NONE
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Some examples given in documentation for MultiIndexing do not work. Namely, you cannot add DataFrames or Series of different sizes, and you cannot use reindexing. This seems to be related to the fact that Index(list(index)) fails if index is an instance of MultiIndex. > > > from pandas import * > > > from numpy.random import randn > > > arrays = [['bar', 'bar', 'baz', 'baz', 'foo', 'foo', 'qux', 'qux'], > > > ['one', 'two', 'one', 'two', 'one', 'two', 'one', 'two']] > > > tuples = zip(*arrays) > > > index = MultiIndex.from_tuples(tuples) > > > s = Series(randn(8), index=index) > > > s > > > bar one 0.173505416255 > > > two 0.225232806724 > > > baz one 0.0144614539266 > > > two -1.42139309132 > > > foo one 0.252413552834 > > > two 0.0597526924593 > > > qux one -2.12059192632 > > > two -1.16341432838 > > > df = DataFrame(randn(3, 8), index=['A', 'B', 'C'], columns=index) > > > > > > s + s[:-2] Traceback (most recent call last): File "<pyshell#192>", line 1, in <module> s + s[:-2] File "C:\Python27\lib\site-packages\pandas\core\series.py", line 45, in wrapper copy=False) File "C:\Python27\lib\site-packages\pandas\core\series.py", line 1282, in align return_indexers=True) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 429, in join join_index = self.union(other) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1388, in union self_tuples = self.get_tuple_index() File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1191, in get_tuple_index return Index(list(self)) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 57, in **new** subarr[:] = data ValueError: operands could not be broadcast together with shapes (8) (8,2) > > > s.reindex(index=index[:-2]) Traceback (most recent call last): File "<pyshell#200>", line 1, in <module> s.reindex(index=index[:-2]) File "C:\Python27\lib\site-packages\pandas\core\series.py", line 1336, in reindex new_index, fill_vec = self.index.reindex(index, method=method) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1175, in reindex indexer = self.get_indexer(target, method=method) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1142, in get_indexer target_index = target.get_tuple_index() File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1191, in get_tuple_index return Index(list(self)) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 57, in **new** subarr[:] = data ValueError: operands could not be broadcast together with shapes (6) (6,2) > > > df=df.T > > > df + df[:-2] Traceback (most recent call last): File "<pyshell#195>", line 1, in <module> df + df[:-2] File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 65, in f return self._combine_frame(other, func, fill_value) File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 1432, in _combine_frame new_index = self.index.union(other.index) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1388, in union self_tuples = self.get_tuple_index() File "C:\Python27\lib\site-packages\pandas\core\index.py", line 1191, in get_tuple_index return Index(list(self)) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 57, in __new__ subarr[:] = data ValueError: operands could not be broadcast together with shapes (8) (8,2) > > > index > > > MultiIndex([('bar', 'one'), ('bar', 'two'), ('baz', 'one'), ('baz', 'two'), > > > ('foo', 'one'), ('foo', 'two'), ('qux', 'one'), ('qux', 'two')], dtype=object) > > > list(index) > > > [('bar', 'one'), ('bar', 'two'), ('baz', 'one'), ('baz', 'two'), ('foo', 'one'), ('foo', 'two'), ('qux', 'one'), ('qux', 'two')] > > > Index(list(index)) Traceback (most recent call last): File "<pyshell#198>", line 1, in <module> Index(list(index)) File "C:\Python27\lib\site-packages\pandas\core\index.py", line 57, in **new** subarr[:] = data ValueError: operands could not be broadcast together with shapes (8) (8,2)
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199
MultiIndex with single level does not work
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1
"2011-10-06T18:25:09Z"
"2011-10-09T17:36:26Z"
"2011-10-09T17:36:26Z"
MEMBER
null
`.ix` based indexing fails, for example
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MDExOlB1bGxSZXF1ZXN0MzgzMTk1
200
Python 3 compatibility
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"2011-10-06T18:53:36Z"
"2014-06-13T05:01:26Z"
"2011-10-09T03:13:19Z"
CONTRIBUTOR
null
No doubt there are ways this could be improved, but this gets it installing, importing, and _almost_ passing the test suite. There's one test failure left, and I think that's something odd with numpy, specifically the `ndarray.searchsorted()` method. It returns seemingly random results when it's called in `panel.get_axis_dummies()` - but I can't replicate those results calling searchsorted on identical arrays interactively. It doesn't add any failures to the Python 2 test suite (one test is failing for me in master), but I've only checked this with Python 2.7.
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