001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.core.doublematrix.calculation.entrywise.creators;
025    
026    import org.ujmp.core.Matrix;
027    import org.ujmp.core.MatrixFactory;
028    import org.ujmp.core.doublematrix.calculation.AbstractDoubleCalculation;
029    import org.ujmp.core.enums.ValueType;
030    import org.ujmp.core.exceptions.MatrixException;
031    
032    public class Ones extends AbstractDoubleCalculation {
033            private static final long serialVersionUID = 2547827499345834225L;
034    
035            public Ones(Matrix matrix) {
036                    super(matrix);
037            }
038    
039            public double getDouble(long... coordinates) {
040                    return 1.0;
041            }
042    
043            public static Matrix calc(Matrix source) throws MatrixException {
044                    Matrix ret = Matrix.factory.zeros(source.getSize());
045                    for (long[] c : source.allCoordinates()) {
046                            ret.setAsDouble(1.0, c);
047                    }
048                    return ret;
049            }
050    
051            public static Matrix calc(long... size) throws MatrixException {
052                    return calc(ValueType.DOUBLE, size);
053            }
054    
055            public static Matrix calc(ValueType valueType, long... size) throws MatrixException {
056                    Matrix ret = MatrixFactory.zeros(valueType, size);
057                    for (long[] c : ret.allCoordinates()) {
058                            ret.setAsDouble(1.0, c);
059                    }
060                    return ret;
061            }
062    }