Alok Singh created SPARK-14550:
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Summary: OneHotEncoding wrapper in SparkR
Key: SPARK-14550
URL: https://issues.apache.org/jira/browse/SPARK-14550
Project: Spark
Issue Type: New Feature
Components: ML, SparkR
Reporter: Alok Singh
Implement OneHotEncoding in R.
In R , usually one can use model.matrix to do one hot encoding. which accepts
formula. I think we can support simple formula here.
model.matrix doc:
https://stat.ethz.ch/R-manual/R-devel/library/stats/html/model.matrix.html
here is the example, that would be nice to have
example :
http://stackoverflow.com/questions/16200241/recode-categorical-factor-with-n-categories-into-n-binary-columns
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