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[SPARK-4409] Added JavaAPI Tests, and fixed a couple of bugs
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mllib/src/test/java/org/apache/spark/mllib/linalg/JavaMatricesSuite.java
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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. | ||
| */ | ||
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| package org.apache.spark.mllib.linalg; | ||
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| import static org.junit.Assert.*; | ||
| import org.junit.Test; | ||
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| import java.io.Serializable; | ||
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| public class JavaMatricesSuite implements Serializable { | ||
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| @Test | ||
| public void randMatrixConstruction() { | ||
| Matrix r = Matrices.rand(3, 4, 24); | ||
| DenseMatrix dr = DenseMatrix.rand(3, 4, 24); | ||
| assertArrayEquals(r.toArray(), dr.toArray(), 0.0); | ||
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| Matrix rn = Matrices.randn(3, 4, 24); | ||
| DenseMatrix drn = DenseMatrix.randn(3, 4, 24); | ||
| assertArrayEquals(rn.toArray(), drn.toArray(), 0.0); | ||
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| Matrix s = Matrices.sprand(3, 4, 0.5, 24); | ||
| SparseMatrix sr = SparseMatrix.sprand(3, 4, 0.5, 24); | ||
| assertArrayEquals(s.toArray(), sr.toArray(), 0.0); | ||
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| Matrix sn = Matrices.sprandn(3, 4, 0.5, 24); | ||
| SparseMatrix srn = SparseMatrix.sprandn(3, 4, 0.5, 24); | ||
| assertArrayEquals(sn.toArray(), srn.toArray(), 0.0); | ||
| } | ||
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| @Test | ||
| public void identityMatrixConstruction() { | ||
| Matrix r = Matrices.eye(2); | ||
| DenseMatrix dr = DenseMatrix.eye(2); | ||
| SparseMatrix sr = SparseMatrix.speye(2); | ||
| assertArrayEquals(r.toArray(), dr.toArray(), 0.0); | ||
| assertArrayEquals(sr.toArray(), dr.toArray(), 0.0); | ||
| assertArrayEquals(r.toArray(), new double[]{1.0, 0.0, 0.0, 1.0}, 0.0); | ||
| } | ||
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| @Test | ||
| public void diagonalMatrixConstruction() { | ||
| Vector v = Vectors.dense(1.0, 0.0, 2.0); | ||
| Vector sv = Vectors.sparse(3, new int[]{0, 2}, new double[]{1.0, 2.0}); | ||
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| Matrix m = Matrices.diag(v); | ||
| Matrix sm = Matrices.diag(sv); | ||
| DenseMatrix d = DenseMatrix.diag(v); | ||
| DenseMatrix sd = DenseMatrix.diag(sv); | ||
| SparseMatrix s = SparseMatrix.diag(v); | ||
| SparseMatrix ss = SparseMatrix.diag(sv); | ||
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| assertArrayEquals(m.toArray(), sm.toArray(), 0.0); | ||
| assertArrayEquals(d.toArray(), sm.toArray(), 0.0); | ||
| assertArrayEquals(d.toArray(), sd.toArray(), 0.0); | ||
| assertArrayEquals(sd.toArray(), s.toArray(), 0.0); | ||
| assertArrayEquals(s.toArray(), ss.toArray(), 0.0); | ||
| assertArrayEquals(s.values(), ss.values(), 0.0); | ||
| assert(s.values().length == 2); | ||
| assert(ss.values().length == 2); | ||
| assert(s.colPtrs().length == 2); | ||
| assert(ss.colPtrs().length == 2); | ||
| } | ||
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| @Test | ||
| public void zerosMatrixConstruction() { | ||
| Matrix z = Matrices.zeros(2, 2); | ||
| Matrix one = Matrices.ones(2, 2); | ||
| DenseMatrix dz = DenseMatrix.zeros(2, 2); | ||
| DenseMatrix done = DenseMatrix.ones(2, 2); | ||
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| assertArrayEquals(z.toArray(), new double[]{0.0, 0.0, 0.0, 0.0}, 0.0); | ||
| assertArrayEquals(dz.toArray(), new double[]{0.0, 0.0, 0.0, 0.0}, 0.0); | ||
| assertArrayEquals(one.toArray(), new double[]{1.0, 1.0, 1.0, 1.0}, 0.0); | ||
| assertArrayEquals(done.toArray(), new double[]{1.0, 1.0, 1.0, 1.0}, 0.0); | ||
| } | ||
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| @Test | ||
| public void concatenateMatrices() { | ||
| int m = 3; | ||
| int n = 2; | ||
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| SparseMatrix spMat1 = SparseMatrix.sprand(m, n, 0.5, 42); | ||
| DenseMatrix deMat1 = DenseMatrix.rand(m, n, 42); | ||
| Matrix deMat2 = Matrices.eye(3); | ||
| Matrix spMat2 = Matrices.speye(3); | ||
| Matrix deMat3 = Matrices.eye(2); | ||
| Matrix spMat3 = Matrices.speye(2); | ||
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| Matrix spHorz = Matrices.horzcat(new Matrix[]{spMat1, spMat2}); | ||
| Matrix deHorz1 = Matrices.horzcat(new Matrix[]{deMat1, deMat2}); | ||
| Matrix deHorz2 = Matrices.horzcat(new Matrix[]{spMat1, deMat2}); | ||
| Matrix deHorz3 = Matrices.horzcat(new Matrix[]{deMat1, spMat2}); | ||
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| assert(deHorz1.numRows() == 3); | ||
| assert(deHorz2.numRows() == 3); | ||
| assert(deHorz3.numRows() == 3); | ||
| assert(spHorz.numRows() == 3); | ||
| assert(deHorz1.numCols() == 5); | ||
| assert(deHorz2.numCols() == 5); | ||
| assert(deHorz3.numCols() == 5); | ||
| assert(spHorz.numCols() == 5); | ||
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| Matrix spVert = Matrices.vertcat(new Matrix[]{spMat1, spMat3}); | ||
| Matrix deVert1 = Matrices.vertcat(new Matrix[]{deMat1, deMat3}); | ||
| Matrix deVert2 = Matrices.vertcat(new Matrix[]{spMat1, deMat3}); | ||
| Matrix deVert3 = Matrices.vertcat(new Matrix[]{deMat1, spMat3}); | ||
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| assert(deVert1.numRows() == 5); | ||
| assert(deVert2.numRows() == 5); | ||
| assert(deVert3.numRows() == 5); | ||
| assert(spVert.numRows() == 5); | ||
| assert(deVert1.numCols() == 2); | ||
| assert(deVert2.numCols() == 2); | ||
| assert(deVert3.numCols() == 2); | ||
| assert(spVert.numCols() == 2); | ||
| } | ||
| } |
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