Package org.ejml.example

Source Code of org.ejml.example.TestQRExampleSimple

/*
* Copyright (c) 2009-2012, Peter Abeles. All Rights Reserved.
*
* This file is part of Efficient Java Matrix Library (EJML).
*
* EJML is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* EJML is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EJML.  If not, see <http://www.gnu.org/licenses/>.
*/

package org.ejml.example;import org.ejml.simple.SimpleMatrix;
import org.junit.Test;

import java.util.Random;

import static org.junit.Assert.assertTrue;

/**
* @author Peter Abeles
*/
public class TestQRExampleSimple {

    Random rand = new Random(23423);


    @Test
    public void basic() {
        checkMatrix(7,5);
        checkMatrix(5,5);
        checkMatrix(7,7);
    }

    private void checkMatrix( int numRows , int numCols ) {
        SimpleMatrix A = SimpleMatrix.random(numRows,numCols,-1,1,rand);

        QRExampleSimple alg = new QRExampleSimple();

        alg.decompose(A);

        SimpleMatrix Q = alg.getQ();
        SimpleMatrix R = alg.getR();

        SimpleMatrix A_found = Q.mult(R);

        assertTrue( A.isIdentical(A_found,1e-8));
    }


}
TOP

Related Classes of org.ejml.example.TestQRExampleSimple

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.