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.jbpcafill;
025    
026    import java.io.File;
027    import java.lang.reflect.Method;
028    
029    import org.ujmp.core.Matrix;
030    import org.ujmp.core.MatrixFactory;
031    import org.ujmp.core.doublematrix.calculation.AbstractDoubleCalculation;
032    import org.ujmp.core.enums.FileFormat;
033    import org.ujmp.core.exceptions.MatrixException;
034    
035    public class ImputeBPCA extends AbstractDoubleCalculation {
036            private static final long serialVersionUID = -8635313044017639669L;
037    
038            private Matrix xImputed = null;
039    
040            public ImputeBPCA(Matrix matrix) {
041                    super(matrix);
042            }
043    
044            
045            public double getDouble(long... coordinates) throws MatrixException {
046                    if (xImputed == null) {
047                            createMatrix();
048                    }
049                    return xImputed.getAsDouble(coordinates);
050            }
051    
052            private void createMatrix() {
053                    try {
054                            Matrix m = getSource();
055                            m = m.replaceRegex(Ret.NEW, "NaN", "999");
056                            File file1 = File.createTempFile("matrix", ".csv");
057                            File file2 = File.createTempFile("matrix", ".csv");
058                            m.exportToFile(FileFormat.CSV, file1);
059                            Class<?> c = Class.forName("JBPCAfill");
060                            Method me = c.getMethod("main", String[].class);
061                            me.invoke(null, new Object[] { new String[] { file1.toString(), file2.toString() } });
062                            m = MatrixFactory.importFromFile(FileFormat.CSV, file2, "\\s");
063                            m = m.replaceRegex(Ret.NEW, ",", "");
064                            file1.delete();
065                            file2.delete();
066                            xImputed = m;
067                    } catch (Exception e) {
068                            e.printStackTrace();
069                    }
070            }
071    }