wbo4958 commented on code in PR #49581:
URL: https://github.com/apache/spark/pull/49581#discussion_r1923063332
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mllib-local/src/main/scala/org/apache/spark/ml/linalg/Vectors.scala:
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@@ -240,6 +240,8 @@ sealed trait Vector extends Serializable {
@Since("2.0.0")
object Vectors {
+ private[ml] val empty: Vector = zeros(0)
Review Comment:
How about changing to Vectors.empty?
https://github.com/apache/spark/blob/master/mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala#L1081
https://github.com/apache/spark/blob/master/mllib/src/main/scala/org/apache/spark/ml/regression/LinearRegression.scala#L707
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