Xiangrui Meng 685ddcf525 [SPARK-5886][ML] Add StringIndexer as a feature transformer ... This PR adds string indexer, which takes a column of string labels and outputs a double column with labels indexed by their frequency. TODOs: - [x] store feature to index map in output metadata Author: Xiangrui Meng <meng@databricks.com> Closes #4735 from mengxr/SPARK-5886 and squashes the following commits: d82575f [Xiangrui Meng] fix test 700e70f [Xiangrui Meng] rename LabelIndexer to StringIndexer 16a6f8c [Xiangrui Meng] Merge remote-tracking branch 'apache/master' into SPARK-5886 457166e [Xiangrui Meng] Merge remote-tracking branch 'apache/master' into SPARK-5886 f8b30f4 [Xiangrui Meng] update label indexer to output metadata e81ec28 [Xiangrui Meng] Merge branch 'openhashmap-contains' into SPARK-5886-2 d6e6f1f [Xiangrui Meng] add contains to primitivekeyopenhashmap 748a69b [Xiangrui Meng] add contains to OpenHashMap def3c5c [Xiangrui Meng] add LabelIndexer		2015-04-12 22:41:05 -07:00
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src	[SPARK-5886][ML] Add StringIndexer as a feature transformer	2015-04-12 22:41:05 -07:00
pom.xml	[SPARK-6341][mllib] Upgrade breeze from 0.11.1 to 0.11.2	2015-03-27 00:15:02 -07:00