Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/7086#discussion_r34074382
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala ---
@@ -106,6 +106,12 @@ class StandardScalerModel private[ml] (
scaler: feature.StandardScalerModel)
extends Model[StandardScalerModel] with StandardScalerParams {
+ /** Standard deviation of the StandardScalerModel*/
+ val std = scaler.std
--- End diff --
need the explicit type info for public methods
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