Minor improvement in EC2 script.
Minor improvement in EC2 script.
Local-node stratified sampling
Introducing local stratified sampling.
Python tests upgraded to fit new RF parameters.
distributed stratification temporarily removed
Sampling strategies
NPE fix
Missing file
Centralized sampling - for RF and CM.
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'ssampling'