Java Matrix Convert To toDiagonalMatrix(double[] x)

Description

to Diagonal Matrix

License

Open Source License

Declaration

public static double[][] toDiagonalMatrix(double[] x) 

Method Source Code

//package com.java2s;
/**/*from  ww w.  j  av  a2  s.c  o m*/
 * Copyright 2004-2006 DFKI GmbH.
 * All Rights Reserved.  Use is subject to license terms.
 *
 * This file is part of MARY TTS.
 *
 * MARY TTS 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, version 3 of the License.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

import java.util.Arrays;

public class Main {
    public static double[][] toDiagonalMatrix(double[] x) {
        double[][] m = null;

        if (x != null && x.length > 0) {
            m = new double[x.length][x.length];
            int i;
            for (i = 0; i < x.length; i++)
                Arrays.fill(m[i], 0.0);

            for (i = 0; i < x.length; i++)
                m[i][i] = x[i];
        }

        return m;
    }
}

Related

1. matrixCastToDouble(String[][] m)
2. matrixToArray(double[][] m)
3. matrixToArray(int[][] input, int fromRow, int rows, int fromColumn, int columns)
4. matrixToQuaternion(float[] m)
5. matrixToShort(final byte[][] b)