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.rounding; 025 026 import org.ujmp.core.Matrix; 027 import org.ujmp.core.doublematrix.calculation.AbstractDoubleCalculation; 028 import org.ujmp.core.exceptions.MatrixException; 029 030 public class Round extends AbstractDoubleCalculation { 031 private static final long serialVersionUID = -5038322249059783563L; 032 033 public Round(Matrix matrix) { 034 super(matrix); 035 } 036 037 public double getDouble(long... coordinates) throws MatrixException { 038 return Math.round(getSource().getAsDouble(coordinates)); 039 } 040 041 public static Matrix calcNew(Matrix source) throws MatrixException { 042 Matrix ret = Matrix.factory.zeros(source.getSize()); 043 for (long[] c : source.availableCoordinates()) { 044 ret.setAsDouble(Math.round(source.getAsDouble(c)), c); 045 } 046 return ret; 047 } 048 049 }