Sean Owen
authored
## What changes were proposed in this pull request? Allow centering / mean scaling of sparse vectors in StandardScaler, if requested. This is for compatibility with `VectorAssembler` in common usages. ## How was this patch tested? Jenkins tests, including new caes to reflect the new behavior. Author: Sean Owen <sowen@cloudera.com> Closes #14663 from srowen/SPARK-17001.
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