Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/10788#discussion_r49963463
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/LogisticRegression.scala
---
@@ -247,8 +247,15 @@ class LogisticRegression @Since("1.2.0") (
@Since("1.5.0")
override def getThresholds: Array[Double] = super.getThresholds
- override protected def train(dataset: DataFrame):
LogisticRegressionModel = {
- // Extract columns from data. If dataset is persisted, do not persist
oldDataset.
+ private var optInitialCoefficients: Option[Vector] = None
+
+ /** @group setParam */
+ private[spark] def setInitialModel(model: LogisticRegressionModel):
this.type = {
+ this.optInitialCoefficients = Some(model.coefficients)
--- End diff --
You don't want to lose the information of intercept in model.
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