SuccessChanges

Summary

  1. [SPARK-30398][ML] PCA/RegressionMetrics/RowMatrix avoid unnecessary (details)
Commit c42fbc715704622f27a1cc52e59e5213e8bdfc09 by srowen
[SPARK-30398][ML] PCA/RegressionMetrics/RowMatrix avoid unnecessary
computation
### What changes were proposed in this pull request? use
`.ml.Summarizer` instead of `.mllib.MultivariateOnlineSummarizer` to
avoid computation of unused metrics
### Why are the changes needed? to avoid computation of unused metrics
### Does this PR introduce any user-facing change? No
### How was this patch tested? existing testsuites
Closes #27059 from zhengruifeng/pac_summarizer.
Authored-by: zhengruifeng <ruifengz@foxmail.com> Signed-off-by: Sean
Owen <srowen@gmail.com>
The file was modifiedmllib/src/main/scala/org/apache/spark/mllib/feature/StandardScaler.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/mllib/linalg/distributed/RowMatrix.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/ml/stat/Summarizer.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/mllib/feature/PCA.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/ml/classification/LinearSVC.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/ml/regression/AFTSurvivalRegression.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/ml/regression/LinearRegression.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/mllib/evaluation/RegressionMetrics.scala (diff)
The file was modifiedmllib/src/main/scala/org/apache/spark/mllib/stat/Statistics.scala (diff)