Github user hhbyyh commented on a diff in the pull request:
https://github.com/apache/spark/pull/17586#discussion_r111312845
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/classification/LinearSVC.scala ---
@@ -287,6 +290,27 @@ class LinearSVCModel private[classification] (
@Since("2.2.0")
def setWeightCol(value: Double): this.type = set(threshold, value)
+ private var trainingSummary: Option[LinearSVCTrainingSummary] = None
+
+ private[classification]
+ def setSummary(summary: Option[LinearSVCTrainingSummary]): this.type = {
+ this.trainingSummary = summary
+ this
+ }
+
+ /**
+ * Gets summary of model on training set. An exception is
+ * thrown if `trainingSummary == None`.
+ */
+ @Since("2.2.0")
+ def summary: LinearSVCTrainingSummary = trainingSummary.getOrElse(
+ throw new SparkException("No training summary available for this
LinearSVCModel")
--- End diff --
I know other places has the same code here. But I don't think throwing an
exception here is proper. If summary is not defined, we should simply return
none, or keep this field as Option[LinearSVCTrainingSummary] to make that
expected by the users. Need to confirm with committers.
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