Peng c8b612decb [SPARK-17870][MLLIB][ML] Change statistic to pValue for SelectKBest and SelectPercentile because of DoF difference ... ## What changes were proposed in this pull request? For feature selection method ChiSquareSelector, it is based on the ChiSquareTestResult.statistic (ChiSqure value) to select the features. It select the features with the largest ChiSqure value. But the Degree of Freedom (df) of ChiSqure value is different in Statistics.chiSqTest(RDD), and for different df, you cannot base on ChiSqure value to select features. So we change statistic to pValue for SelectKBest and SelectPercentile ## How was this patch tested? change existing test Author: Peng <peng.meng@intel.com> Closes #15444 from mpjlu/chisqure-bug.		2016-10-14 12:48:57 +01:00
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docs	[SPARK-16781][PYSPARK] java launched by PySpark as gateway may not be the same java used in the spark environment	2016-08-24 20:04:09 +01:00
lib	[SPARK-16781][PYSPARK] java launched by PySpark as gateway may not be the same java used in the spark environment	2016-08-24 20:04:09 +01:00
pyspark	[SPARK-17870][MLLIB][ML] Change statistic to pValue for SelectKBest and SelectPercentile because of DoF difference	2016-10-14 12:48:57 +01:00
test_support	[SPARK-17585][PYSPARK][CORE] PySpark SparkContext.addFile supports adding files recursively	2016-09-21 01:37:03 -07:00
.gitignore	[SPARK-3946] gitignore in /python includes wrong directory	2014-10-14 14:09:39 -07:00
pylintrc	[SPARK-13596][BUILD] Move misc top-level build files into appropriate subdirs	2016-03-07 14:48:02 -08:00
run-tests	[SPARK-8583] [SPARK-5482] [BUILD] Refactor python/run-tests to integrate with dev/run-tests module system	2015-06-27 20:24:34 -07:00
run-tests.py	[SPARK-13579][BUILD] Stop building the main Spark assembly.	2016-04-04 16:52:22 -07:00