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## 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> |
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| .. | ||
| build.properties | ||
| MimaBuild.scala | ||
| MimaExcludes.scala | ||
| plugins.sbt | ||
| SparkBuild.scala | ||