Github user MLnick commented on a diff in the pull request:
https://github.com/apache/spark/pull/11099#discussion_r53615612
--- Diff:
mllib/src/main/scala/org/apache/spark/ml/feature/PolynomialExpansion.scala ---
@@ -46,7 +46,7 @@ class PolynomialExpansion(override val uid: String)
* @group param
*/
val degree = new IntParam(this, "degree", "the polynomial degree to
expand (>= 1)",
- ParamValidators.gt(1))
+ ParamValidators.gtEq(1))
--- End diff --
This has been done in https://github.com/apache/spark/pull/11216, and I
think that would be merged shortly (also has a related test case addition).
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