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-rw-r--r--examples/src/main/scala/org/apache/spark/examples/mllib/PMMLModelExportExample.scala59
1 files changed, 59 insertions, 0 deletions
diff --git a/examples/src/main/scala/org/apache/spark/examples/mllib/PMMLModelExportExample.scala b/examples/src/main/scala/org/apache/spark/examples/mllib/PMMLModelExportExample.scala
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index 0000000000..d74d74a37f
--- /dev/null
+++ b/examples/src/main/scala/org/apache/spark/examples/mllib/PMMLModelExportExample.scala
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ */
+
+// scalastyle:off println
+package org.apache.spark.examples.mllib
+
+import org.apache.spark.{SparkConf, SparkContext}
+// $example on$
+import org.apache.spark.mllib.clustering.KMeans
+import org.apache.spark.mllib.linalg.Vectors
+// $example off$
+
+object PMMLModelExportExample {
+
+ def main(args: Array[String]): Unit = {
+ val conf = new SparkConf().setAppName("PMMLModelExportExample")
+ val sc = new SparkContext(conf)
+
+ // $example on$
+ // Load and parse the data
+ val data = sc.textFile("data/mllib/kmeans_data.txt")
+ val parsedData = data.map(s => Vectors.dense(s.split(' ').map(_.toDouble))).cache()
+
+ // Cluster the data into two classes using KMeans
+ val numClusters = 2
+ val numIterations = 20
+ val clusters = KMeans.train(parsedData, numClusters, numIterations)
+
+ // Export to PMML to a String in PMML format
+ println("PMML Model:\n" + clusters.toPMML)
+
+ // Export the model to a local file in PMML format
+ clusters.toPMML("/tmp/kmeans.xml")
+
+ // Export the model to a directory on a distributed file system in PMML format
+ clusters.toPMML(sc, "/tmp/kmeans")
+
+ // Export the model to the OutputStream in PMML format
+ clusters.toPMML(System.out)
+ // $example off$
+
+ sc.stop()
+ }
+}
+// scalastyle:on println