Liang-Chi Hsieh 33107897ad [SPARK-11215][ML] Add multiple columns support to StringIndexer ... ## What changes were proposed in this pull request? This takes over #19621 to add multi-column support to StringIndexer: 1. Supports encoding multiple columns. 2. Previously, when specifying `frequencyDesc` or `frequencyAsc` as `stringOrderType` param in `StringIndexer`, in case of equal frequency, the order of strings is undefined. After this change, the strings with equal frequency are further sorted alphabetically. ## How was this patch tested? Added tests. Closes #20146 from viirya/SPARK-11215. Authored-by: Liang-Chi Hsieh <viirya@gmail.com> Signed-off-by: Sean Owen <sean.owen@databricks.com>		2019-01-29 09:21:25 -06:00
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inst	[MINOR][R] Fix indents of sparkR welcome message to be consistent with pyspark and spark-shell	2018-12-13 20:05:49 +08:00
R	[SPARK-25981][R] Enables Arrow optimization from R DataFrame to Spark DataFrame	2019-01-27 10:45:49 +08:00
src-native	[SPARK-6811] Copy SparkR lib in make-distribution.sh	2015-05-23 00:04:01 -07:00
tests	[SPARK-11215][ML] Add multiple columns support to StringIndexer	2019-01-29 09:21:25 -06:00
vignettes	[SPARK-19827][R] spark.ml R API for PIC	2018-12-10 18:28:13 -06:00
.lintr	[SPARK-22063][R] Fixes lint check failures in R by latest commit sha1 ID of lint-r	2017-10-01 18:42:45 +09:00
.Rbuildignore	[SPARK-20877][SPARKR][FOLLOWUP] clean up after test move	2017-06-11 03:00:44 -07:00
DESCRIPTION	[SPARK-26014][R] Deprecate R prior to version 3.4 in SparkR	2018-11-15 17:20:49 +08:00
NAMESPACE	[SPARK-19827][R] spark.ml R API for PIC	2018-12-10 18:28:13 -06:00