Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/9667#discussion_r48920464
--- Diff:
mllib/src/main/scala/org/apache/spark/mllib/optimization/GradientDescent.scala
---
@@ -122,8 +122,8 @@ class GradientDescent private[spark] (private var
gradient: Gradient, private va
* @return solution vector
*/
@DeveloperApi
- def optimize(data: RDD[(Double, Vector)], initialWeights: Vector):
Vector = {
- val (weights, _) = GradientDescent.runMiniBatchSGD(
+ def optimize(data: RDD[(Double, Vector)], initialWeights: Vector):
(Vector, Double, Integer) = {
--- End diff --
This API should not be changed. You could add a new method
(```optimizeWithStats```?) which returns the 3 values, and then share the
implementation.
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