/*
* Copyright (C) 2008-2015 by Holger Arndt
*
* This file is part of the Universal Java Matrix Package (UJMP).
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* UJMP is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* UJMP is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with UJMP; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package org.ujmp.core.intmatrix.calculation;
import org.ujmp.core.Matrix;
public class ValueToColumn extends AbstractIntCalculation {
private static final long serialVersionUID = 1294551769508034360L;
private int max;
private final long[] size;
public ValueToColumn(Matrix matrix, int max) {
super(matrix);
if (matrix.getColumnCount() != 1) {
throw new RuntimeException("matrix must have one column");
}
this.max = max;
this.size = new long[] { getSource().getRowCount(), max + 1 };
}
public ValueToColumn(Matrix matrix) {
super(matrix);
if (matrix.getColumnCount() != 1) {
throw new RuntimeException("matrix must have one column");
}
for (long[] c : getSource().availableCoordinates()) {
max = Math.max(max, getSource().getAsInt(c));
}
this.size = new long[] { getSource().getRowCount(), max + 1 };
}
public final long[] getSize() {
return size;
}
public int getInt(long... coordinates) {
int col = getSource().getAsInt(coordinates[ROW], 0);
if (col == coordinates[COLUMN]) {
return 1;
} else {
return 0;
}
}
}