Initial work on ToEnum && ToInt
Merge branch 'master' of https://github.com/0xdata/h2o into sai-enum_int
update to track h2o-perf not Perfor...
Fix minor code issues.
Merge branch 'master' of https://github.com/0xdata/h2o
first try at the ToEnum hack
*TypeChange has two classes:
  1. TypeChange
  2. CollectDomainVA
Merge branch 'master' of https://github.com/0xdata/h2o into sai-enum_int
Resolve PUB-368 - Allow choice of sampling strategy for validation set.
Either uniform or stratified.
Also disable Poisson distribution as default stratified sampling strategy,
since it may lead to 0 class counts for small data sets.
Fix probabilities after oversampling, following the math by Guido Deutsch.
TODO: To be verified and extended to multi-class.
Add skeleton for generalized AUC computation.
Implement generalized AUC computation, similar to ConfusionMatrix.
TODO: use percentiles
Merge branch 'master' of https://github.com/0xdata/h2o into sai-enum_int
Clean up AUC computation.
Use AUC in NN.
more accurate on some corner cases (Summary2)
interesting floor/round tradeoffs. This gets the 1% quantile for 4 cylinders in cars.csv correct (only 4/405=3, so answer is 4)
Fix in variable importance voting.
Merge branch 'master' of github.com:0xdata/h2o
return nothing if a col is empty due to all NAs or other reasons (better than bogus data)? in any case, Summary2 asserted so this prvents the assert. looks okay in browser with all NA (says "Empty column, no summary")
Merge branch 'master' of https://github.com/0xdata/h2o