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.impl; 025 026 import org.ujmp.core.Matrix; 027 import org.ujmp.core.doublematrix.stub.AbstractDenseDoubleMatrix2D; 028 import org.ujmp.core.exceptions.MatrixException; 029 import org.ujmp.core.interfaces.HasRowMajorDoubleArray2D; 030 031 public class ArrayDenseDoubleMatrix2D extends AbstractDenseDoubleMatrix2D implements 032 HasRowMajorDoubleArray2D { 033 private static final long serialVersionUID = 3132491298449205914L; 034 035 private final double[][] values; 036 037 public ArrayDenseDoubleMatrix2D(Matrix m) throws MatrixException { 038 if (m instanceof ArrayDenseDoubleMatrix2D) { 039 double[][] v = ((ArrayDenseDoubleMatrix2D) m).values; 040 this.values = new double[v.length][v[0].length]; 041 for (int r = v.length; --r != -1;) { 042 for (int c = v[0].length; --c != -1;) { 043 values[r][c] = v[r][c]; 044 } 045 } 046 } else { 047 values = new double[(int) m.getRowCount()][(int) m.getColumnCount()]; 048 for (long[] c : m.allCoordinates()) { 049 setAsDouble(m.getAsDouble(c), c); 050 } 051 } 052 } 053 054 public ArrayDenseDoubleMatrix2D(double[]... v) { 055 this.values = v; 056 } 057 058 public ArrayDenseDoubleMatrix2D(long... size) { 059 values = new double[(int) size[ROW]][(int) size[COLUMN]]; 060 } 061 062 public ArrayDenseDoubleMatrix2D(long rows, long cols) { 063 values = new double[(int) rows][(int) cols]; 064 } 065 066 public ArrayDenseDoubleMatrix2D(double[] v) { 067 this.values = new double[v.length][1]; 068 for (int r = v.length; --r != -1;) { 069 values[r][0] = v[r]; 070 } 071 } 072 073 public long[] getSize() { 074 return new long[] { values.length, values.length == 0 ? 0 : values[0].length }; 075 } 076 077 public long getRowCount() { 078 return values.length; 079 } 080 081 public long getColumnCount() { 082 return values.length == 0 ? 0 : values[0].length; 083 } 084 085 public double getDouble(long row, long column) { 086 return values[(int) row][(int) column]; 087 } 088 089 public void setDouble(double value, long row, long column) { 090 values[(int) row][(int) column] = value; 091 } 092 093 public double getDouble(int row, int column) { 094 return values[row][column]; 095 } 096 097 public void setDouble(double value, int row, int column) { 098 values[row][column] = value; 099 } 100 101 public final Matrix copy() throws MatrixException { 102 double[][] result = new double[values.length][values[0].length]; 103 for (int r = result.length; --r != -1;) { 104 for (int c = result[0].length; --c != -1;) { 105 result[r][c] = values[r][c]; 106 } 107 } 108 Matrix m = new ArrayDenseDoubleMatrix2D(result); 109 if (getAnnotation() != null) { 110 m.setAnnotation(getAnnotation().clone()); 111 } 112 return m; 113 } 114 115 public boolean containsNaN() { 116 for (int r = values.length; --r != -1;) { 117 for (int c = values[0].length; --c != -1;) { 118 if (Double.isNaN(values[r][c])) { 119 return true; 120 } 121 } 122 } 123 return false; 124 } 125 126 public double[][] getRowMajorDoubleArray2D() { 127 return values; 128 } 129 130 }