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.general.missingvalues; 025 026 import org.ujmp.core.Matrix; 027 import org.ujmp.core.doublematrix.calculation.AbstractDoubleCalculation; 028 import org.ujmp.core.exceptions.MatrixException; 029 import org.ujmp.core.util.MathUtil; 030 031 public class CountMissing extends AbstractDoubleCalculation { 032 private static final long serialVersionUID = -8720603522373221865L; 033 034 public CountMissing(int dimension, Matrix matrix) { 035 super(dimension, matrix); 036 } 037 038 039 public double getDouble(long... coordinates) throws MatrixException { 040 double sum = 0; 041 switch (getDimension()) { 042 case ROW: 043 for (long r = getSource().getSize()[ROW] - 1; r != -1; r--) { 044 sum += MathUtil.isNaNOrInfinite(getSource().getAsDouble(r, coordinates[COLUMN])) ? 1 : 0; 045 } 046 return sum; 047 case COLUMN: 048 for (long c = getSource().getSize()[COLUMN] - 1; c != -1; c--) { 049 sum += MathUtil.isNaNOrInfinite(getSource().getAsDouble(coordinates[ROW], c)) ? 1 : 0; 050 } 051 return sum; 052 case ALL: 053 for (long r = getSource().getSize()[ROW] - 1; r != -1; r--) { 054 for (long c = getSource().getSize()[COLUMN] - 1; c != -1; c--) { 055 sum += MathUtil.isNaNOrInfinite(getSource().getAsDouble(r, c)) ? 1 : 0; 056 } 057 } 058 return sum; 059 } 060 return 0.0; 061 } 062 063 064 public long[] getSize() { 065 switch (getDimension()) { 066 case ROW: 067 return new long[] { 1, getSource().getSize()[COLUMN] }; 068 case COLUMN: 069 return new long[] { getSource().getSize()[ROW], 1 }; 070 case ALL: 071 return new long[] { 1, 1 }; 072 } 073 return null; 074 } 075 076 }