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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.
+#
+
+"""
+NaiveBayes Example.
+"""
+from __future__ import print_function
+
+# $example on$
+from pyspark.mllib.classification import NaiveBayes, NaiveBayesModel
+from pyspark.mllib.linalg import Vectors
+from pyspark.mllib.regression import LabeledPoint
+
+
+def parseLine(line):
+ parts = line.split(',')
+ label = float(parts[0])
+ features = Vectors.dense([float(x) for x in parts[1].split(' ')])
+ return LabeledPoint(label, features)
+# $example off$
+
+if __name__ == "__main__":
+
+ sc = SparkContext(appName="PythonNaiveBayesExample")
+
+ # $example on$
+ data = sc.textFile('data/mllib/sample_naive_bayes_data.txt').map(parseLine)
+
+ # Split data aproximately into training (60%) and test (40%)
+ training, test = data.randomSplit([0.6, 0.4], seed=0)
+
+ # Train a naive Bayes model.
+ model = NaiveBayes.train(training, 1.0)
+
+ # Make prediction and test accuracy.
+ predictionAndLabel = test.map(lambda p: (model.predict(p.features), p.label))
+ accuracy = 1.0 * predictionAndLabel.filter(lambda (x, v): x == v).count() / test.count()
+
+ # Save and load model
+ model.save(sc, "target/tmp/myNaiveBayesModel")
+ sameModel = NaiveBayesModel.load(sc, "target/tmp/myNaiveBayesModel")
+ # $example off$