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Diffstat (limited to 'python/pyspark/ml/feature.py')
| -rw-r--r-- | python/pyspark/ml/feature.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/python/pyspark/ml/feature.py b/python/pyspark/ml/feature.py index 8804dace84..9bca7cc000 100644 --- a/python/pyspark/ml/feature.py +++ b/python/pyspark/ml/feature.py @@ -627,6 +627,10 @@ class StandardScaler(JavaEstimator, HasInputCol, HasOutputCol): >>> df = sqlContext.createDataFrame([(Vectors.dense([0.0]),), (Vectors.dense([2.0]),)], ["a"]) >>> standardScaler = StandardScaler(inputCol="a", outputCol="scaled") >>> model = standardScaler.fit(df) + >>> model.mean + DenseVector([1.0]) + >>> model.std + DenseVector([1.4142]) >>> model.transform(df).collect()[1].scaled DenseVector([1.4142]) """ @@ -692,6 +696,20 @@ class StandardScalerModel(JavaModel): Model fitted by StandardScaler. """ + @property + def std(self): + """ + Standard deviation of the StandardScalerModel. + """ + return self._call_java("std") + + @property + def mean(self): + """ + Mean of the StandardScalerModel. + """ + return self._call_java("mean") + @inherit_doc class StringIndexer(JavaEstimator, HasInputCol, HasOutputCol): |