Github user MLnick commented on a diff in the pull request: https://github.com/apache/spark/pull/12467#discussion_r60730417 --- Diff: mllib/src/main/scala/org/apache/spark/ml/feature/RFormula.scala --- @@ -254,8 +254,8 @@ class RFormulaModel private[feature]( val columnNames = schema.map(_.name) require(!columnNames.contains($(featuresCol)), "Features column already exists.") require( - !columnNames.contains($(labelCol)) || schema($(labelCol)).dataType == DoubleType, - "Label column already exists and is not of type DoubleType.") + !columnNames.contains($(labelCol)) || schema($(labelCol)).dataType.isInstanceOf[NumericType], --- End diff -- ah I see now, never mind.
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