Yanbo Liang 07be232ea1 [SPARK-18412][SPARKR][ML] Fix exception for some SparkR ML algorithms training on libsvm data ... ## What changes were proposed in this pull request? * Fix the following exceptions which throws when ```spark.randomForest```(classification), ```spark.gbt```(classification), ```spark.naiveBayes``` and ```spark.glm```(binomial family) were fitted on libsvm data. ``` java.lang.IllegalArgumentException: requirement failed: If label column already exists, forceIndexLabel can not be set with true. ``` See [SPARK-18412](https://issues.apache.org/jira/browse/SPARK-18412) for more detail about how to reproduce this bug. * Refactor out ```getFeaturesAndLabels``` to RWrapperUtils, since lots of ML algorithm wrappers use this function. * Drop some unwanted columns when making prediction. ## How was this patch tested? Add unit test. Author: Yanbo Liang <ybliang8@gmail.com> Closes #15851 from yanboliang/spark-18412.		2016-11-13 20:25:12 -08:00
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profile	[SPARK-15159][SPARKR] SparkR SparkSession API	2016-06-17 21:36:01 -07:00
tests/testthat	[SPARK-18412][SPARKR][ML] Fix exception for some SparkR ML algorithms training on libsvm data	2016-11-13 20:25:12 -08:00
worker	[SPARK-17919] Make timeout to RBackend configurable in SparkR	2016-10-30 16:17:23 -07:00