Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/16630#discussion_r126873706
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/regression/GeneralizedLinearRegression.scala
---
@@ -1187,6 +1189,23 @@ class GeneralizedLinearRegressionSummary
private[regression] (
@Since("2.2.0")
lazy val numInstances: Long = predictions.count()
+
+ /**
+ * Name of features. If the name cannot be retrieved from attributes,
+ * set default names to feature column name with numbered suffix "_0",
"_1", and so on.
+ */
+ @Since("2.2.0")
+ lazy val featureNames: Array[String] = {
--- End diff --
Could we keep it private?
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