linalg/distributed/JavaRowMatrixSuite.java

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 package org.apache.spark.mllib.linalg.distributed;
0019
0020 import java.util.Arrays;
0021
0022 import org.junit.Test;
0023
0024 import org.apache.spark.SharedSparkSession;
0025 import org.apache.spark.api.java.JavaRDD;
0026 import org.apache.spark.mllib.linalg.Matrix;
0027 import org.apache.spark.mllib.linalg.QRDecomposition;
0028 import org.apache.spark.mllib.linalg.Vector;
0029 import org.apache.spark.mllib.linalg.Vectors;
0030
0031 public class JavaRowMatrixSuite extends SharedSparkSession {
0032
0033   @Test
0034   public void rowMatrixQRDecomposition() {
0035     Vector v1 = Vectors.dense(1.0, 10.0, 100.0);
0036     Vector v2 = Vectors.dense(2.0, 20.0, 200.0);
0037     Vector v3 = Vectors.dense(3.0, 30.0, 300.0);
0038
0039     JavaRDD<Vector> rows = jsc.parallelize(Arrays.asList(v1, v2, v3), 1);
0040     RowMatrix mat = new RowMatrix(rows.rdd());
0041
0042     QRDecomposition<RowMatrix, Matrix> result = mat.tallSkinnyQR(true);
0043   }
0044 }