spark git commit: [SPARK-11468] [SPARKR] add stddev/variance agg functions for Column

Repository: spark Updated Branches: refs/heads/branch-1.6 d9a39048f -> 649a0a357 [SPARK-11468] [SPARKR] add stddev/variance agg functions for Column Checked names, none of them should conflict with anything in base shivaram davies rxin Author: felixcheung Closes

spark git commit: [SPARK-11468] [SPARKR] add stddev/variance agg functions for Column

Repository: spark Updated Branches: refs/heads/master fac53d8ec -> 1a8e0468a [SPARK-11468] [SPARKR] add stddev/variance agg functions for Column Checked names, none of them should conflict with anything in base shivaram davies rxin Author: felixcheung Closes