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.intmatrix.calculation; 025 026 import org.ujmp.core.Matrix; 027 import org.ujmp.core.doublematrix.calculation.entrywise.rounding.Round; 028 import org.ujmp.core.exceptions.MatrixException; 029 030 public class Discretize extends AbstractIntCalculation { 031 private static final long serialVersionUID = -2045926868254834270L; 032 033 private Matrix discretized = null; 034 035 public enum DiscretizationMethod { 036 ROUND, STRINGS, STANDARDBINNING, EQUALBINNING, INFORMATIONGAIN 037 }; 038 039 public Discretize(Matrix matrix, int dimension, DiscretizationMethod method, int numberOfBins) { 040 super(dimension, matrix); 041 switch (method) { 042 case ROUND: 043 discretized = new Round(matrix).calcLink(); 044 break; 045 case STANDARDBINNING: 046 discretized = new DiscretizeStandardBinning(dimension, matrix, numberOfBins).calcLink(); 047 break; 048 default: 049 throw new MatrixException("method not yet implemented"); 050 } 051 } 052 053 public int getInt(long... coordinates) throws MatrixException { 054 return discretized.getAsInt(coordinates); 055 } 056 057 }