BrandonFors/pandas-github-issues huggingface dataset:
Revert  DOC/CI: temp pin matplotlib for doc build #20045
State: closed

Closes https://github.com/pandas-dev/pandas/issues/20031

Need to check the output of `merging.rst`.

Labels:
name: Docs

Comments:
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=h1) Report
> Merging [#20704](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/d5d5a718254f45b4bdc386c360c830df395ec02a?src=pr&el=desc) will **decrease** coverage by `0.02%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20704/graphs/tree.svg?height=150&width=650&src=pr&token=eZ4WkYLtcO)](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #20704      +/-   ##
==========================================
- Coverage   91.84%   91.81%   -0.03%     
==========================================
  Files         153      153              
  Lines       49277    49277              
==========================================
- Hits        45257    45243      -14     
- Misses       4020     4034      +14
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.2% <ø> (-0.03%)` | :arrow_down: |
| #single | `41.91% <ø> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/plotting/\_converter.py](https://codecov.io/gh/pandas-dev/pandas/pull/20704/diff?src=pr&el=tree#diff-cGFuZGFzL3Bsb3R0aW5nL19jb252ZXJ0ZXIucHk=) | `65.07% <0%> (-1.74%)` | :arrow_down: |
| [pandas/util/testing.py](https://codecov.io/gh/pandas-dev/pandas/pull/20704/diff?src=pr&el=tree#diff-cGFuZGFzL3V0aWwvdGVzdGluZy5weQ==) | `84.38% <0%> (-0.21%)` | :arrow_down: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=footer). Last update [d5d5a71...62d48af](https://codecov.io/gh/pandas-dev/pandas/pull/20704?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

https://travis-ci.org/pandas-dev/pandas/jobs/366773025 looks OK. Merging.
DOC: Addition to pd.DataFrame.assign() docstring (#20085)
State: closed

- [ ] closes #20085 
- [ ] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

Adding information to pd.DataFrame.assign() docstring that re-assigning of existing columns will overwrite the same.


Labels:
name: Docs
name: Indexing
description: Related to indexing on series/frames, not to indexes themselves

Comments:
cc @jreback 
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=h1) Report
> Merging [#20702](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/d5d5a718254f45b4bdc386c360c830df395ec02a?src=pr&el=desc) will **not change** coverage.
> The diff coverage is `100%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20702/graphs/tree.svg?token=eZ4WkYLtcO&width=650&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master   #20702   +/-   ##
=======================================
  Coverage   91.84%   91.84%           
=======================================
  Files         153      153           
  Lines       49277    49277           
=======================================
  Hits        45257    45257           
  Misses       4020     4020
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.23% <100%> (ø)` | :arrow_up: |
| #single | `41.91% <100%> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/frame.py](https://codecov.io/gh/pandas-dev/pandas/pull/20702/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZnJhbWUucHk=) | `97.16% <100%> (ø)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=footer). Last update [d5d5a71...6d43c4a](https://codecov.io/gh/pandas-dev/pandas/pull/20702?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

thanks @HannahFerch
BUG: Series.is_unique has extra output if contains objects with __ne__ defined
State: closed



- [x] closes #20661
- [x] tests added / passed
  - series/test/series/test_analytics.py:test_is_unique_class_ne
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

Simple change from `_checknan` to `checknull` in pandas/_libs/hashtable_class_helper.pxi.in

Checked performance, and there is no difference.

Labels:
name: Indexing
description: Related to indexing on series/frames, not to indexes themselves
name: Compat
description: pandas objects compatability with Numpy or Python functions

Comments:
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20691?src=pr&el=h1) Report
> Merging [#20691](https://codecov.io/gh/pandas-dev/pandas/pull/20691?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/ad5affb6417c26bc7f3bc10668f0cf63fd867940?src=pr&el=desc) will **not change** coverage.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20691/graphs/tree.svg?height=150&src=pr&token=eZ4WkYLtcO&width=650)](https://codecov.io/gh/pandas-dev/pandas/pull/20691?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master   #20691   +/-   ##
=======================================
  Coverage   91.84%   91.84%           
=======================================
  Files         153      153           
  Lines       49275    49275           
=======================================
  Hits        45255    45255           
  Misses       4020     4020
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.23% <ø> (ø)` | :arrow_up: |
| #single | `41.91% <ø> (ø)` | :arrow_up: |


------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20691?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20691?src=pr&el=footer). Last update [ad5affb...ee71a90](https://codecov.io/gh/pandas-dev/pandas/pull/20691?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

@jreback Removing checknan works, but failure was due to a network area with Amazon S3.  How can I get the travis run to be done again?
thanks @Dr-Irv 

yeah sometimes the builds fail for extraneous reasons. you can push a dummy commit if you want, e.g.

``git commit --amend -C HEAD``
Updated URL for spam test
State: closed


- [X] closes #20685
- [X] tests added / passed
- [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Labels:
name: Testing
description: pandas testing functions or related to the test suite
name: IO HTML
description: read_html, to_html, Styler.apply, Styler.applymap

Comments:
Travis is passing. Thanks!
README.md
State: closed

Checklist for PRs:

- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Labels:

Comments:
Is this change needed? Can you give some reasoning
I am from the panda sprint meetup and I am trying my hands on the basics before making more serious changes.
this is changing the syntax of the install which is not correct.
Update README.md
State: closed

Remove dot (".") from end of pip command

Checklist for the pandas documentation sprint (ignore this if you are doing
an unrelated PR):

- [x] PR title is "DOC: update the <your-function-or-method> docstring"
- [ ] The validation script passes: `scripts/validate_docstrings.py <your-function-or-method>`
- [ ] The PEP8 style check passes: `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] The html version looks good: `python doc/make.py --single <your-function-or-method>`
- [ ] It has been proofread on language by another sprint participant

Please include the output of the validation script below between the "```" ticks:

```
# paste output of "scripts/validate_docstrings.py <your-function-or-method>" here
# between the "```" (remove this comment, but keep the "```")

```

If the validation script still gives errors, but you think there is a good reason
to deviate in this case (and there are certainly such cases), please state this
explicitly.


Checklist for other PRs (remove this part if you are doing a PR for the pandas documentation sprint):

- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Labels:

Comments:
same
BUG: fixes indexing with monotonic decreasing DTI (#19362)
State: closed

- [x] closes #19362
- [x] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

Seems that #19362 is caused by the fact that `np.any([0])` is false. Here's a suggested solution. Also added a test.

Labels:
name: Bug
name: Datetime
description: Datetime data dtype
name: Indexing
description: Related to indexing on series/frames, not to indexes themselves

Comments:
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20677?src=pr&el=h1) Report
> :exclamation: No coverage uploaded for pull request base (`master@8756f55`). [Click here to learn what that means](https://docs.codecov.io/docs/error-reference#section-missing-base-commit).
> The diff coverage is `100%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20677/graphs/tree.svg?width=650&height=150&token=eZ4WkYLtcO&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/20677?src=pr&el=tree)

```diff
@@            Coverage Diff            @@
##             master   #20677   +/-   ##
=========================================
  Coverage          ?   91.81%           
=========================================
  Files             ?      153           
  Lines             ?    49279           
  Branches          ?        0           
=========================================
  Hits              ?    45247           
  Misses            ?     4032           
  Partials          ?        0
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.2% <100%> (?)` | |
| #single | `41.9% <100%> (?)` | |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/20677?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/indexes/datetimelike.py](https://codecov.io/gh/pandas-dev/pandas/pull/20677/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvaW5kZXhlcy9kYXRldGltZWxpa2UucHk=) | `96.72% <100%> (ø)` | |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20677?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20677?src=pr&el=footer). Last update [8756f55...ecff6e4](https://codecov.io/gh/pandas-dev/pandas/pull/20677?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

Thanks for the helpful comments @jreback, I think the updated commit should address the points.
https://github.com/pandas-dev/pandas/pull/20677/commits/3c4f38b005c7d7a4e2e66d180a536acc2b9c57a3 was all green @jreback 
thanks @mapehe! 
Np!
BUG: Fixed exception when Series.str.get is used with dict values and the index is not an existing key (#20671)
State: closed

- [X] closes #20671
- [X] tests added / passed (* unrelated tests failed, with locale problems, not sure if caused by something on my system or something on pandas)
- [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [X] whatsnew entry


Labels:
name: Bug
name: Strings
description: String extension data type and string data

Comments:
also can you review the doc-string for correctness for this case (add an example if you can as well)
We're reviewing the docstring and adding the example in #20667.
thanks @datapythonista
Split test multi
State: closed

Checklist for the pandas documentation sprint (ignore this if you are doing
an unrelated PR):

- [ ] PR title is "DOC: update the <your-function-or-method> docstring"
- [ ] The validation script passes: `scripts/validate_docstrings.py <your-function-or-method>`
- [ ] The PEP8 style check passes: `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] The html version looks good: `python doc/make.py --single <your-function-or-method>`
- [ ] It has been proofread on language by another sprint participant

Please include the output of the validation script below between the "```" ticks:

```
# paste output of "scripts/validate_docstrings.py <your-function-or-method>" here
# between the "```" (remove this comment, but keep the "```")

```

If the validation script still gives errors, but you think there is a good reason
to deviate in this case (and there are certainly such cases), please state this
explicitly.


Checklist for other PRs (remove this part if you are doing a PR for the pandas documentation sprint):

- [x] closes #18644
- [ ] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Labels:
name: Testing
description: pandas testing functions or related to the test suite
name: MultiIndex

Comments:
Hello @xchoudhury! Thanks for updating the PR.









































Cheers ! There are no PEP8 issues in this Pull Request. :beers: 

##### Comment last updated on April 13, 2018 at 05:02 Hours UTC
make sure you rebase on origin/master
@xchoudhury  I see you've done a lot of good work on splitting out the multi index tests.  Would you like any help polishing this off?  I'd be happy to assist.
Fix test__get_dtype test expecting little-endian
State: closed

Similar to #14832, use = (native) instead of < (little-endian)

- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Labels:
name: Testing
description: pandas testing functions or related to the test suite
name: Compat
description: pandas objects compatability with Numpy or Python functions

Comments:
thanks @ginggs
MAINT: Remove console encode
State: closed

Closes #20616 

Nice to finally get back to some `pandas` work!

Labels:
name: Clean

Comments:
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=h1) Report
> Merging [#20645](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/e8f206d8192b409bc39da1ba1b2c5bcd8b65cc9f?src=pr&el=desc) will **increase** coverage by `<.01%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20645/graphs/tree.svg?token=eZ4WkYLtcO&width=650&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #20645      +/-   ##
==========================================
+ Coverage   91.83%   91.84%   +<.01%     
==========================================
  Files         153      153              
  Lines       49269    49269              
==========================================
+ Hits        45247    45249       +2     
+ Misses       4022     4020       -2
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.22% <ø> (ø)` | :arrow_up: |
| #single | `41.9% <ø> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/io/formats/printing.py](https://codecov.io/gh/pandas-dev/pandas/pull/20645/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL2Zvcm1hdHMvcHJpbnRpbmcucHk=) | `89.38% <ø> (ø)` | :arrow_up: |
| [pandas/util/testing.py](https://codecov.io/gh/pandas-dev/pandas/pull/20645/diff?src=pr&el=tree#diff-cGFuZGFzL3V0aWwvdGVzdGluZy5weQ==) | `84.59% <0%> (+0.2%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=footer). Last update [e8f206d...a34866d](https://codecov.io/gh/pandas-dev/pandas/pull/20645?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

I ran `grep` to double check, and there are no other instances left.
added check if categoricalDtype for issue #19278
State: closed

Checklist for other PRs:

- [x] closes #19278
- [ ] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Labels:
name: Sparse
description: Sparse Data Type
name: Categorical
description: Categorical Data Type

Comments:
Hello @xchoudhury! Thanks for updating the PR.



Cheers ! There are no PEP8 issues in this Pull Request. :beers: 

##### Comment last updated on April 10, 2018 at 03:36 Hours UTC
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=h1) Report
> Merging [#20644](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/e8f206d8192b409bc39da1ba1b2c5bcd8b65cc9f?src=pr&el=desc) will **decrease** coverage by `<.01%`.
> The diff coverage is `28.57%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20644/graphs/tree.svg?height=150&token=eZ4WkYLtcO&width=650&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #20644      +/-   ##
==========================================
- Coverage   91.83%   91.83%   -0.01%     
==========================================
  Files         153      153              
  Lines       49269    49276       +7     
==========================================
+ Hits        45247    45251       +4     
- Misses       4022     4025       +3
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.22% <28.57%> (-0.01%)` | :arrow_down: |
| #single | `41.9% <14.28%> (-0.01%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/sparse/series.py](https://codecov.io/gh/pandas-dev/pandas/pull/20644/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvc3BhcnNlL3Nlcmllcy5weQ==) | `93.75% <28.57%> (-1.46%)` | :arrow_down: |
| [pandas/util/testing.py](https://codecov.io/gh/pandas-dev/pandas/pull/20644/diff?src=pr&el=tree#diff-cGFuZGFzL3V0aWwvdGVzdGluZy5weQ==) | `84.59% <0%> (+0.2%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=footer). Last update [e8f206d...90756c6](https://codecov.io/gh/pandas-dev/pandas/pull/20644?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

@xchoudhury can you update?
closing as stale, if you want to continue working, pls ping and we can re-open. you will need to merge master.
Save the name of undefined variables in expressions.
State: closed

This can be useful information for downstream error-handling code.

Labels:
name: Error Reporting
description: Incorrect or improved errors from pandas
name: Algos
description: Non-arithmetic algos: value_counts, factorize, sorting, isin, clip, shift, diff

Comments:
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/20637?src=pr&el=h1) Report
> Merging [#20637](https://codecov.io/gh/pandas-dev/pandas/pull/20637?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/6d610a4d9393c0d0335267dc3252ccabb9e51e43?src=pr&el=desc) will **increase** coverage by `0.02%`.
> The diff coverage is `100%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/20637/graphs/tree.svg?height=150&width=650&token=eZ4WkYLtcO&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/20637?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #20637      +/-   ##
==========================================
+ Coverage   91.82%   91.84%   +0.02%     
==========================================
  Files         153      153              
  Lines       49256    49258       +2     
==========================================
+ Hits        45227    45243      +16     
+ Misses       4029     4015      -14
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.23% <100%> (+0.02%)` | :arrow_up: |
| #single | `41.91% <100%> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/20637?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/computation/ops.py](https://codecov.io/gh/pandas-dev/pandas/pull/20637/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvY29tcHV0YXRpb24vb3BzLnB5) | `95.63% <100%> (+0.03%)` | :arrow_up: |
| [pandas/util/testing.py](https://codecov.io/gh/pandas-dev/pandas/pull/20637/diff?src=pr&el=tree#diff-cGFuZGFzL3V0aWwvdGVzdGluZy5weQ==) | `84.73% <0%> (+0.2%)` | :arrow_up: |
| [pandas/plotting/\_converter.py](https://codecov.io/gh/pandas-dev/pandas/pull/20637/diff?src=pr&el=tree#diff-cGFuZGFzL3Bsb3R0aW5nL19jb252ZXJ0ZXIucHk=) | `66.81% <0%> (+1.73%)` | :arrow_up: |

------

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would need a test to show the use of this
@kalekundert can you make a test case out of some of the downstream code that motivated this?  Once this is tested this will be about ready.
@kalekundert ping re implementing a test.
Closing as stale. Ping if you'd like to reopen