Github user mpjlu commented on the issue:
https://github.com/apache/spark/pull/14449
Hi @srowen, thanks for your comment.
I agree for your comment, user can get the number of features without
percentage method. For the user experience, sometimes the percentage method
seems better.
In scikit-learn, there are both SelectKBest and SelectPercentile APIs:
http://scikit-learn.org/stable/modules/classes.html#module-sklearn.feature_selection
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