zhengruifeng opened a new pull request #25311: [SPARK-28579][ML] MaxAbsScaler avoids conversion to breeze.vector URL: https://github.com/apache/spark/pull/25311 ## What changes were proposed in this pull request? avoid `.ml.vector => .breeze.vector` conversion in `MaxAbsScaler`, and reuse the transformation method in `StandardScalerModel`, which can deal with dense & sparse vector separately. ## How was this patch tested? existing suites
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