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examples/src/main/python/ml/imputer_example.py
49 строк
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hyukjinkwon
[SPARK-23248][PYTHON][EXAMPLES] Relocate module docstrings to the top in PySpark examples
28 янв 2018, 04:33
28 янв 2018, 04:33
b8c32dc
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# # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # """ An example demonstrating Imputer. Run with: bin/spark-submit examples/src/main/python/ml/imputer_example.py """ # $example on$ from pyspark.ml.feature import Imputer # $example off$ from pyspark.sql import SparkSession if __name__ == "__main__": spark = SparkSession\ .builder\ .appName("ImputerExample")\ .getOrCreate() # $example on$ df = spark.createDataFrame([ (1.0, float("nan")), (2.0, float("nan")), (float("nan"), 3.0), (4.0, 4.0), (5.0, 5.0) ], ["a", "b"]) imputer = Imputer(inputCols=["a", "b"], outputCols=["out_a", "out_b"]) model = imputer.fit(df) model.transform(df).show() # $example off$ spark.stop()