f4a22808e0
Adding STDDEV support for DataFrame using 1-pass online /parallel algorithm to compute variance. Please review the code change. Author: JihongMa <linlin200605@gmail.com> Author: Jihong MA <linlin200605@gmail.com> Author: Jihong MA <jihongma@jihongs-mbp.usca.ibm.com> Author: Jihong MA <jihongma@Jihongs-MacBook-Pro.local> Closes #6297 from JihongMA/SPARK-SQL. |
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