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0001 # 0002 # Licensed to the Apache Software Foundation (ASF) under one or more 0003 # contributor license agreements. See the NOTICE file distributed with 0004 # this work for additional information regarding copyright ownership. 0005 # The ASF licenses this file to You under the Apache License, Version 2.0 0006 # (the "License"); you may not use this file except in compliance with 0007 # the License. You may obtain a copy of the License at 0008 # 0009 # http://www.apache.org/licenses/LICENSE-2.0 0010 # 0011 # Unless required by applicable law or agreed to in writing, software 0012 # distributed under the License is distributed on an "AS IS" BASIS, 0013 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 0014 # See the License for the specific language governing permissions and 0015 # limitations under the License. 0016 # 0017 0018 """ 0019 An example demonstrating PowerIterationClustering. 0020 Run with: 0021 bin/spark-submit examples/src/main/python/ml/power_iteration_clustering_example.py 0022 """ 0023 # $example on$ 0024 from pyspark.ml.clustering import PowerIterationClustering 0025 # $example off$ 0026 from pyspark.sql import SparkSession 0027 0028 if __name__ == "__main__": 0029 spark = SparkSession\ 0030 .builder\ 0031 .appName("PowerIterationClusteringExample")\ 0032 .getOrCreate() 0033 0034 # $example on$ 0035 df = spark.createDataFrame([ 0036 (0, 1, 1.0), 0037 (0, 2, 1.0), 0038 (1, 2, 1.0), 0039 (3, 4, 1.0), 0040 (4, 0, 0.1) 0041 ], ["src", "dst", "weight"]) 0042 0043 pic = PowerIterationClustering(k=2, maxIter=20, initMode="degree", weightCol="weight") 0044 0045 # Shows the cluster assignment 0046 pic.assignClusters(df).show() 0047 # $example off$ 0048 0049 spark.stop()
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