1 files changed, 2 insertions, 0 deletions
diff --git a/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala b/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
index d76a9c6275..6a0b6c240e 100644
--- a/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
+++ b/mllib/src/main/scala/org/apache/spark/ml/feature/StandardScaler.scala
@@ -94,6 +94,7 @@ class StandardScaler(override val uid: String) extends Estimator[StandardScalerM
   }
 
   override def transformSchema(schema: StructType): StructType = {
+    validateParams()
     val inputType = schema($(inputCol)).dataType
     require(inputType.isInstanceOf[VectorUDT],
       s"Input column ${$(inputCol)} must be a vector column")
@@ -143,6 +144,7 @@ class StandardScalerModel private[ml] (
   }
 
   override def transformSchema(schema: StructType): StructType = {
+    validateParams()
     val inputType = schema($(inputCol)).dataType
     require(inputType.isInstanceOf[VectorUDT],
       s"Input column ${$(inputCol)} must be a vector column")