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/* |
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Copyright @ 1999-2004, The Institute for Genomic Research (TIGR). |
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All rights reserved. |
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*/ |
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/* |
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* $Id$ |
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* |
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* Created 11/26/2001 |
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* |
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* Description: |
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* |
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* Copyright (C) 2002 TIGR |
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* |
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*/ |
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package org.tigr.microarray.mev.cluster.algorithm.impl; |
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|
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import java.awt.BorderLayout; |
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import java.awt.event.ActionEvent; |
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import java.awt.event.ActionListener; |
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import java.util.Random; |
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import java.util.Vector; |
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|
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import javax.swing.JButton; |
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import javax.swing.JFrame; |
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import javax.swing.JLabel; |
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import javax.swing.JPanel; |
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|
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import org.tigr.microarray.mev.cluster.Cluster; |
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import org.tigr.microarray.mev.cluster.Node; |
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import org.tigr.microarray.mev.cluster.NodeList; |
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import org.tigr.microarray.mev.cluster.NodeValue; |
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import org.tigr.microarray.mev.cluster.NodeValueList; |
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import org.tigr.microarray.mev.cluster.algorithm.AbortException; |
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import org.tigr.microarray.mev.cluster.algorithm.AbstractAlgorithm; |
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import org.tigr.microarray.mev.cluster.algorithm.AlgorithmData; |
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import org.tigr.microarray.mev.cluster.algorithm.AlgorithmEvent; |
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import org.tigr.microarray.mev.cluster.algorithm.AlgorithmException; |
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import org.tigr.microarray.mev.cluster.algorithm.AlgorithmParameters; |
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import org.tigr.microarray.util.Adjustment; |
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import org.tigr.util.FloatMatrix; |
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import org.tigr.util.awt.ProgressDialog; |
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|
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import Jama.Matrix; |
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|
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public class GSH extends AbstractAlgorithm { |
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|
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private long StartTime; |
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private long CalculationTime; |
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|
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private JLabel StatusLabel; |
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private int CurrentCluster, CreatedCluster; |
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|
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private GSCluster clusters[]; |
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private GSCluster resultClusters[]; |
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private boolean gshGenes; |
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private int m; |
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private int n; |
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private int k; // number of expected clusters; |
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private int fakedMatrix; |
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private int swapTime; |
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private int matrixSize; |
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private int geneAssaigned=0; |
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//private GeneCluster[] GeneClusterPointers; |
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|
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private int validN; |
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|
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private Jama.Matrix dataMatrix; |
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private Jama.Matrix workingMatrix; |
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private Jama.SingularValueDecomposition SVD; |
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private Jama.EigenvalueDecomposition EVD; |
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private double[][] values; |
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private Jama.Matrix eigenVector; |
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private double[] prinCom; |
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private double[] currentGene; |
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private GSCluster unassigned; |
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//private boolean drawTrees; |
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|
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|
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private boolean stop = false; |
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|
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private int function; |
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//private int DistanceFunction; |
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private float factor; |
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private boolean absolute; |
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ProgressDialog PD; |
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|
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private int number_of_genes; |
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private int number_of_samples; |
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|
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private FloatMatrix expMatrix; |
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|
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private int hcl_function; |
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private boolean hcl_absolute; |
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|
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public AlgorithmData execute(AlgorithmData data) throws AlgorithmException { |
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|
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AlgorithmParameters map = data.getParams(); |
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|
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function = map.getInt("distance-function", EUCLIDEAN); |
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factor = map.getFloat("distance-factor", 1.0f); |
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absolute = map.getBoolean("distance-absolute", false); |
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gshGenes = map.getBoolean("gsh-cluster-genes", true); |
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|
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int number_of_fakedMatrix = map.getInt("number-of-fakedMatrix", 20); |
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fakedMatrix=number_of_fakedMatrix; |
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int number_of_swap = map.getInt("number-of-swap", 5); |
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swapTime=number_of_swap; |
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int number_of_clusters = map.getInt("number-of-clusters", 5); |
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k=number_of_clusters; |
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|
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boolean hierarchical_tree = map.getBoolean("hierarchical-tree", false); |
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int method_linkage = map.getInt("method-linkage", 0); |
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boolean calculate_genes = map.getBoolean("calculate-genes", false); |
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boolean calculate_experiments = map.getBoolean("calculate-experiments", false); |
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|
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hcl_function = map.getInt("hcl-distance-function", EUCLIDEAN); |
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hcl_absolute = map.getBoolean("hcl-distance-absolute", false); |
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|
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this.expMatrix = data.getMatrix("experiment"); |
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|
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number_of_genes = this.expMatrix.getRowDimension(); |
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n=number_of_genes; |
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number_of_samples = this.expMatrix.getColumnDimension(); |
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m=number_of_samples; |
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values = new double[n][m]; |
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prinCom = new double[m]; |
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|
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JFrame dummyFrame = new JFrame(); |
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if(gshGenes) |
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PD = new ProgressDialog(dummyFrame, "Gene Shaving -- Progress", false, 6); |
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else |
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PD = new ProgressDialog(dummyFrame, "Sample Shaving -- Progress", false, 6); |
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|
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JPanel progressPanel = PD.getLabelPanel(); |
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JPanel superPanel = new JPanel(); |
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superPanel.setLayout(new BorderLayout()); |
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JButton abortButton = new JButton(" Cancel "); |
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abortButton.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED)); |
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abortButton.setFocusPainted(false); |
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|
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abortButton.addActionListener(new ActionListener() { |
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public void actionPerformed(ActionEvent e) { |
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stop = true; |
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PD.dismiss(); |
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} |
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}); |
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|
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superPanel.add(progressPanel, BorderLayout.CENTER); |
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superPanel.add(abortButton, BorderLayout.SOUTH); |
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PD.setMainPanel(superPanel); |
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PD.setSize(450,200); |
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|
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calculate(); |
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FloatMatrix means = getMeans(clusters); |
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FloatMatrix variances = getVariances(clusters, means); |
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|
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AlgorithmEvent event = null; |
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if (hierarchical_tree) { |
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event = new AlgorithmEvent(this, AlgorithmEvent.SET_UNITS, clusters.length, "Calculate Hierarchical Trees"); |
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fireValueChanged(event); |
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event.setIntValue(0); |
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event.setId(AlgorithmEvent.PROGRESS_VALUE); |
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fireValueChanged(event); |
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} |
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|
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Cluster result_cluster = new Cluster(); |
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NodeList nodeList = result_cluster.getNodeList(); |
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int[] features; |
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for (int i=0; i<clusters.length; i++) { |
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if (stop) { |
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throw new AbortException(); |
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} |
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features = convert2int(clusters[i]); |
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Node node = new Node(features); |
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nodeList.addNode(node); |
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if (hierarchical_tree) { |
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node.setValues(calculateHierarchicalTree(features, method_linkage, calculate_genes, calculate_experiments)); |
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event.setIntValue(i+1); |
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fireValueChanged(event); |
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} |
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} |
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|
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// prepare the result |
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AlgorithmData result = new AlgorithmData(); |
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result.addCluster("cluster", result_cluster); |
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result.addParam("number-of-clusters", String.valueOf(clusters.length)); |
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result.addMatrix("clusters-means", means); |
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result.addMatrix("clusters-variances", variances); |
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//result.addParam("iterations", String.valueOf(getIterations())); |
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//result.addParam("converged", String.valueOf(getConverged())); |
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return result; |
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} |
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|
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|
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|
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public void getMatrix(){ |
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int i,j; |
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|
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double[][] temp = new double[n][m]; |
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|
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for(i=0;i<n;i++){ |
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for(j=0;j<m;j++){ |
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temp[i][j] = expMatrix.A[i][j]; |
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} |
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} |
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|
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Adjustment.meanCenterSpots(expMatrix); |
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|
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for(i=0;i<n;i++){ |
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|
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for(j=0;j<m;j++){ |
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|
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values[i][j]=(double)expMatrix.A[i][j]; |
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expMatrix.A[i][j] = (float) temp[i][j]; |
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} |
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} |
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|
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dataMatrix=new Matrix(values); |
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} |
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|
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|
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public void calculate(){ |
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|
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PD.setMessage(0, "Distance: " + AbstractAlgorithm.getDistanceName(function)); |
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PD.setMessage(1, "Clusters to be created: " + k); |
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PD.setMessage(2, "0 clusters created."); |
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PD.setMessage(3, geneAssaigned+" genes have been assigned to clusters."); |
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PD.setMessage(4, (n-geneAssaigned)+" genes left to be assigned to clusters."); |
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PD.setTimerLabel(5,"Running for ", " seconds.", 1000); |
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PD.setVisible(true); |
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|
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|
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getMatrix(); |
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CreatedCluster=0; |
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|
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resultClusters=new GSCluster[k + 1]; |
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|
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//GeneClusterPointers=new GeneCluster[k + 1]; //For 'k' clusters plus the final cluster of unassigned genes |
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|
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resultClusters[k] = new GSCluster(); |
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for (int i = 0; i < n; i++) { |
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resultClusters[k].add(new Integer(i)); |
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} |
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|
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while(CreatedCluster<k){ |
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|
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//System.out.println("CreatedCluster: " + CreatedCluster); |
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|
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CurrentCluster=0; |
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unassigned = new GSCluster(); |
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|
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//get sequence of clusters |
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|
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for (int i=0;i<n;i++){ |
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|
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unassigned.add(new Integer(i)); |
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} |
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|
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int iter=getIteration(); |
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|
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clusters=new GSCluster[iter]; |
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for (int i = 0; i < clusters.length; i++) { |
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clusters[i] = new GSCluster(); |
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} |
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|
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for(int i=0; i<iter; i++){ |
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|
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//System.out.println("CurrentCluster: " + CurrentCluster); |
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|
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matrixSize=unassigned.size(); |
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|
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double[] scores=new double[matrixSize]; |
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int[] indexs=new int[matrixSize]; |
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|
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for(int r=0; r<matrixSize;r++) { |
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indexs[r]=((Integer)(unassigned.elementAt(r))).intValue(); |
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} |
2 |
26 Feb 07 |
jari |
278 |
|
2 |
26 Feb 07 |
jari |
279 |
workingMatrix=dataMatrix.getMatrix(indexs,0,m-1); |
2 |
26 Feb 07 |
jari |
280 |
|
2 |
26 Feb 07 |
jari |
281 |
getPrincipleComponent(); |
2 |
26 Feb 07 |
jari |
282 |
|
2 |
26 Feb 07 |
jari |
283 |
for(int j=0; j< matrixSize;j++){ |
2 |
26 Feb 07 |
jari |
284 |
|
2 |
26 Feb 07 |
jari |
//currentGene=getGene(((Integer)(unassigned.elementAt(j))).intValue()); |
2 |
26 Feb 07 |
jari |
286 |
currentGene=getGene(j); |
2 |
26 Feb 07 |
jari |
287 |
|
2 |
26 Feb 07 |
jari |
288 |
scores[j]=getInnerProduct(prinCom,currentGene); |
2 |
26 Feb 07 |
jari |
289 |
} |
2 |
26 Feb 07 |
jari |
290 |
|
2 |
26 Feb 07 |
jari |
291 |
shaveGene(scores); |
2 |
26 Feb 07 |
jari |
292 |
CurrentCluster++; |
2 |
26 Feb 07 |
jari |
293 |
} |
2 |
26 Feb 07 |
jari |
294 |
|
2 |
26 Feb 07 |
jari |
//get cluster size |
2 |
26 Feb 07 |
jari |
296 |
int maxIndex=0; |
2 |
26 Feb 07 |
jari |
297 |
double maxGap=0.0d; |
2 |
26 Feb 07 |
jari |
298 |
double currentGap; |
2 |
26 Feb 07 |
jari |
299 |
|
2 |
26 Feb 07 |
jari |
300 |
for(int i=0;i<clusters.length;i++){ |
2 |
26 Feb 07 |
jari |
301 |
|
2 |
26 Feb 07 |
jari |
302 |
workingMatrix=(Matrix)dataMatrix.clone(); |
2 |
26 Feb 07 |
jari |
303 |
|
2 |
26 Feb 07 |
jari |
304 |
currentGap=getDk(clusters[i])-getD_k(clusters[i]); |
2 |
26 Feb 07 |
jari |
305 |
if (currentGap>maxGap){ |
2 |
26 Feb 07 |
jari |
306 |
|
2 |
26 Feb 07 |
jari |
307 |
maxGap=currentGap; |
2 |
26 Feb 07 |
jari |
308 |
maxIndex=i; |
2 |
26 Feb 07 |
jari |
309 |
} |
2 |
26 Feb 07 |
jari |
310 |
} |
2 |
26 Feb 07 |
jari |
311 |
|
2 |
26 Feb 07 |
jari |
312 |
resultClusters[CreatedCluster]=(GSCluster)clusters[maxIndex].clone(); |
2 |
26 Feb 07 |
jari |
313 |
|
2 |
26 Feb 07 |
jari |
314 |
geneAssaigned+=resultClusters[CreatedCluster].size(); |
2 |
26 Feb 07 |
jari |
315 |
|
2 |
26 Feb 07 |
jari |
316 |
PD.setMessage(2, (CreatedCluster + 1) +" clusters created."); |
2 |
26 Feb 07 |
jari |
317 |
if(gshGenes){ |
2 |
26 Feb 07 |
jari |
318 |
PD.setMessage(3, geneAssaigned+" genes have been assigned to clusters."); |
2 |
26 Feb 07 |
jari |
319 |
PD.setMessage(4, (n-geneAssaigned)+" genes left to be assigned to clusters."); |
2 |
26 Feb 07 |
jari |
320 |
} |
2 |
26 Feb 07 |
jari |
321 |
else{ |
2 |
26 Feb 07 |
jari |
322 |
PD.setMessage(3, geneAssaigned+" experiments have been assigned to clusters."); |
2 |
26 Feb 07 |
jari |
323 |
PD.setMessage(4, (n-geneAssaigned)+" experiments left to be assigned to clusters."); |
2 |
26 Feb 07 |
jari |
324 |
} |
2 |
26 Feb 07 |
jari |
325 |
updateMatrix(); |
2 |
26 Feb 07 |
jari |
326 |
CreatedCluster++; |
2 |
26 Feb 07 |
jari |
327 |
} |
2 |
26 Feb 07 |
jari |
328 |
|
2 |
26 Feb 07 |
jari |
//Figure out which genes have not been assigned |
2 |
26 Feb 07 |
jari |
330 |
for (int i = 0; i < resultClusters.length - 1; i++) { |
2 |
26 Feb 07 |
jari |
331 |
for (int j = 0; j < resultClusters[i].size(); j++) { |
2 |
26 Feb 07 |
jari |
332 |
try { |
2 |
26 Feb 07 |
jari |
333 |
resultClusters[k].removeElement(resultClusters[i].elementAt(j)); |
2 |
26 Feb 07 |
jari |
334 |
} catch (Exception e) { |
2 |
26 Feb 07 |
jari |
335 |
System.out.println("Exception when removing elements"); |
2 |
26 Feb 07 |
jari |
336 |
} |
2 |
26 Feb 07 |
jari |
337 |
} |
2 |
26 Feb 07 |
jari |
338 |
} |
2 |
26 Feb 07 |
jari |
339 |
|
2 |
26 Feb 07 |
jari |
//Create a final cluster out of unassigned genes |
2 |
26 Feb 07 |
jari |
341 |
|
2 |
26 Feb 07 |
jari |
// Output messages |
2 |
26 Feb 07 |
jari |
343 |
for (int i = 0; i < resultClusters.length; i++) { |
2 |
26 Feb 07 |
jari |
//System.out.println("Cluster " + i); |
2 |
26 Feb 07 |
jari |
345 |
for (int j = 0; j < resultClusters[i].size(); j++) { |
2 |
26 Feb 07 |
jari |
//System.out.println("Gene " + resultClusters[i].elementAt(j)); |
2 |
26 Feb 07 |
jari |
347 |
} |
2 |
26 Feb 07 |
jari |
348 |
} |
2 |
26 Feb 07 |
jari |
349 |
|
2 |
26 Feb 07 |
jari |
350 |
clusters = resultClusters; |
2 |
26 Feb 07 |
jari |
351 |
PD.dismiss(); |
2 |
26 Feb 07 |
jari |
352 |
} |
2 |
26 Feb 07 |
jari |
353 |
|
2 |
26 Feb 07 |
jari |
354 |
public void abort() { |
2 |
26 Feb 07 |
jari |
355 |
stop=true; |
2 |
26 Feb 07 |
jari |
356 |
} |
2 |
26 Feb 07 |
jari |
357 |
|
2 |
26 Feb 07 |
jari |
358 |
public void getPrincipleComponent(){ |
2 |
26 Feb 07 |
jari |
359 |
|
2 |
26 Feb 07 |
jari |
360 |
double[][] EV= new double[1][matrixSize]; |
2 |
26 Feb 07 |
jari |
361 |
|
2 |
26 Feb 07 |
jari |
362 |
// |
2 |
26 Feb 07 |
jari |
363 |
EVD= (workingMatrix.times(workingMatrix.transpose())).eig(); |
2 |
26 Feb 07 |
jari |
364 |
|
2 |
26 Feb 07 |
jari |
365 |
Matrix D=EVD.getD(); |
2 |
26 Feb 07 |
jari |
366 |
Matrix U=EVD.getV(); |
2 |
26 Feb 07 |
jari |
367 |
|
2 |
26 Feb 07 |
jari |
368 |
|
2 |
26 Feb 07 |
jari |
369 |
for(int i=0;i<matrixSize;i++){ |
2 |
26 Feb 07 |
jari |
370 |
EV[0][i]=U.get(i, 0); |
2 |
26 Feb 07 |
jari |
// System.out.println("EV[0][" + i + "]: " + EV[0][i]); |
2 |
26 Feb 07 |
jari |
372 |
} |
2 |
26 Feb 07 |
jari |
373 |
|
2 |
26 Feb 07 |
jari |
374 |
eigenVector=new Matrix(EV); |
2 |
26 Feb 07 |
jari |
375 |
Matrix PC = eigenVector.times(workingMatrix); |
2 |
26 Feb 07 |
jari |
376 |
for(int i=0;i<m;i++){ |
2 |
26 Feb 07 |
jari |
377 |
|
2 |
26 Feb 07 |
jari |
378 |
prinCom[i]=PC.get(0,i); |
2 |
26 Feb 07 |
jari |
// System.out.println("prinCom[" + i + "]: " + prinCom[i]); |
2 |
26 Feb 07 |
jari |
380 |
} |
2 |
26 Feb 07 |
jari |
381 |
|
2 |
26 Feb 07 |
jari |
382 |
|
2 |
26 Feb 07 |
jari |
383 |
} |
2 |
26 Feb 07 |
jari |
384 |
|
2 |
26 Feb 07 |
jari |
385 |
public int getIteration(){ |
2 |
26 Feb 07 |
jari |
386 |
int count=0; |
2 |
26 Feb 07 |
jari |
387 |
int totalGenes = n; |
2 |
26 Feb 07 |
jari |
388 |
while(totalGenes > 1){ |
2 |
26 Feb 07 |
jari |
389 |
totalGenes-=Math.max((int)(totalGenes*0.1),1); |
2 |
26 Feb 07 |
jari |
//totalGenes-=Math.max((int)(totalGenes*0.2),1); //Try 20% instead of 10% for max cluster size |
2 |
26 Feb 07 |
jari |
391 |
count++; |
2 |
26 Feb 07 |
jari |
392 |
} |
2 |
26 Feb 07 |
jari |
393 |
return count; |
2 |
26 Feb 07 |
jari |
394 |
|
2 |
26 Feb 07 |
jari |
395 |
} |
2 |
26 Feb 07 |
jari |
396 |
|
2 |
26 Feb 07 |
jari |
397 |
public double getInnerProduct(double[] x, double[] y){ |
2 |
26 Feb 07 |
jari |
398 |
int count = 0; |
2 |
26 Feb 07 |
jari |
399 |
double add=0.0d; |
2 |
26 Feb 07 |
jari |
400 |
|
2 |
26 Feb 07 |
jari |
401 |
if(x.length!=y.length){ |
2 |
26 Feb 07 |
jari |
402 |
System.out.println("Vector has different number of elements!"); |
2 |
26 Feb 07 |
jari |
403 |
}else{count=x.length;} |
2 |
26 Feb 07 |
jari |
404 |
|
2 |
26 Feb 07 |
jari |
405 |
for(int i=0;i<count; i++) { |
2 |
26 Feb 07 |
jari |
406 |
|
2 |
26 Feb 07 |
jari |
407 |
add+=x[i]*y[i]; |
2 |
26 Feb 07 |
jari |
408 |
} |
2 |
26 Feb 07 |
jari |
409 |
return add; |
2 |
26 Feb 07 |
jari |
410 |
|
2 |
26 Feb 07 |
jari |
411 |
} |
2 |
26 Feb 07 |
jari |
412 |
|
2 |
26 Feb 07 |
jari |
413 |
public double[] getGene(int row){ |
2 |
26 Feb 07 |
jari |
414 |
|
2 |
26 Feb 07 |
jari |
415 |
double[] aGene=new double[m]; |
2 |
26 Feb 07 |
jari |
416 |
|
2 |
26 Feb 07 |
jari |
417 |
for(int i=0;i<m;i++){ |
2 |
26 Feb 07 |
jari |
418 |
|
2 |
26 Feb 07 |
jari |
419 |
aGene[i]=workingMatrix.get(row,i); |
2 |
26 Feb 07 |
jari |
420 |
} |
2 |
26 Feb 07 |
jari |
421 |
return aGene; |
2 |
26 Feb 07 |
jari |
422 |
|
2 |
26 Feb 07 |
jari |
423 |
} |
2 |
26 Feb 07 |
jari |
424 |
|
2 |
26 Feb 07 |
jari |
425 |
public void shaveGene(double[] scores){ |
2 |
26 Feb 07 |
jari |
426 |
|
2 |
26 Feb 07 |
jari |
427 |
int cutNo=Math.max((int)(unassigned.size()*0.1),1); |
2 |
26 Feb 07 |
jari |
//int cutNo=Math.max((int)(unassigned.size()*0.2),1); //Try 20% instead of 10% for max cluster size |
2 |
26 Feb 07 |
jari |
429 |
int[] cutIndex=new int[cutNo]; |
2 |
26 Feb 07 |
jari |
430 |
double minValue; |
2 |
26 Feb 07 |
jari |
431 |
int minIndex; |
2 |
26 Feb 07 |
jari |
432 |
Integer spaceHolder=new Integer(-1); |
2 |
26 Feb 07 |
jari |
433 |
|
2 |
26 Feb 07 |
jari |
434 |
for (int j=0;j<cutNo;j++){ |
2 |
26 Feb 07 |
jari |
435 |
|
2 |
26 Feb 07 |
jari |
436 |
minValue=scores[0]; |
2 |
26 Feb 07 |
jari |
437 |
minIndex=0; |
2 |
26 Feb 07 |
jari |
438 |
|
2 |
26 Feb 07 |
jari |
439 |
for(int i=0;i<matrixSize;i++){ |
2 |
26 Feb 07 |
jari |
440 |
|
2 |
26 Feb 07 |
jari |
441 |
if(minValue>scores[i]){ |
2 |
26 Feb 07 |
jari |
442 |
|
2 |
26 Feb 07 |
jari |
443 |
minValue=scores[i]; |
2 |
26 Feb 07 |
jari |
444 |
minIndex=i; |
2 |
26 Feb 07 |
jari |
445 |
} |
2 |
26 Feb 07 |
jari |
446 |
} |
2 |
26 Feb 07 |
jari |
447 |
cutIndex[j]=minIndex; |
2 |
26 Feb 07 |
jari |
448 |
scores[minIndex]=Double.MAX_VALUE;//to set it a big value so that it will not be chosen again. |
2 |
26 Feb 07 |
jari |
449 |
} |
2 |
26 Feb 07 |
jari |
450 |
|
2 |
26 Feb 07 |
jari |
451 |
for (int j=0;j<cutNo;j++){ |
2 |
26 Feb 07 |
jari |
452 |
clusters[CurrentCluster].add((Integer)(unassigned.elementAt(cutIndex[j]))); |
2 |
26 Feb 07 |
jari |
453 |
unassigned.setElementAt(spaceHolder, cutIndex[j]); |
2 |
26 Feb 07 |
jari |
454 |
} |
2 |
26 Feb 07 |
jari |
455 |
|
2 |
26 Feb 07 |
jari |
456 |
for (int j=0;j<cutNo;j++){ |
2 |
26 Feb 07 |
jari |
457 |
|
2 |
26 Feb 07 |
jari |
458 |
unassigned.removeElement(spaceHolder); |
2 |
26 Feb 07 |
jari |
459 |
|
2 |
26 Feb 07 |
jari |
460 |
} |
2 |
26 Feb 07 |
jari |
461 |
|
2 |
26 Feb 07 |
jari |
462 |
} |
2 |
26 Feb 07 |
jari |
463 |
|
2 |
26 Feb 07 |
jari |
464 |
public double getDk(GSCluster gs) { |
2 |
26 Feb 07 |
jari |
465 |
|
2 |
26 Feb 07 |
jari |
466 |
float x_a=0.0f,v_b=0.0f; |
2 |
26 Feb 07 |
jari |
467 |
double R2,v_w=0.0d; |
2 |
26 Feb 07 |
jari |
468 |
double value; |
2 |
26 Feb 07 |
jari |
469 |
|
2 |
26 Feb 07 |
jari |
470 |
FloatMatrix Ave=gs.getAveGene(); |
2 |
26 Feb 07 |
jari |
471 |
|
2 |
26 Feb 07 |
jari |
472 |
for (int i=0; i<m; i++) { |
2 |
26 Feb 07 |
jari |
473 |
x_a+=Ave.get(0,i); |
2 |
26 Feb 07 |
jari |
474 |
} |
2 |
26 Feb 07 |
jari |
475 |
x_a/=m; |
2 |
26 Feb 07 |
jari |
476 |
|
2 |
26 Feb 07 |
jari |
477 |
for (int i=0; i<m; i++) { |
2 |
26 Feb 07 |
jari |
478 |
v_b+=Math.pow((Ave.get(0,i)-x_a),2); |
2 |
26 Feb 07 |
jari |
479 |
} |
2 |
26 Feb 07 |
jari |
480 |
v_b/=m; |
2 |
26 Feb 07 |
jari |
481 |
|
2 |
26 Feb 07 |
jari |
482 |
for (int i=0; i<m; i++) { |
2 |
26 Feb 07 |
jari |
483 |
|
2 |
26 Feb 07 |
jari |
484 |
for (int j=0; j<gs.size(); j++) { |
2 |
26 Feb 07 |
jari |
485 |
value=workingMatrix.get(((Integer)gs.get(j)).intValue(),i); |
2 |
26 Feb 07 |
jari |
486 |
v_w+=Math.pow((value-Ave.get(0,i)),2); |
2 |
26 Feb 07 |
jari |
487 |
} |
2 |
26 Feb 07 |
jari |
488 |
|
2 |
26 Feb 07 |
jari |
489 |
} |
2 |
26 Feb 07 |
jari |
490 |
v_w/=(m*gs.size()); |
2 |
26 Feb 07 |
jari |
491 |
|
2 |
26 Feb 07 |
jari |
492 |
R2=(v_b/v_w)/(1+v_b/v_w); |
2 |
26 Feb 07 |
jari |
493 |
|
2 |
26 Feb 07 |
jari |
494 |
return R2; |
2 |
26 Feb 07 |
jari |
495 |
} |
2 |
26 Feb 07 |
jari |
496 |
|
2 |
26 Feb 07 |
jari |
497 |
public double getD_k(GSCluster gs) { |
2 |
26 Feb 07 |
jari |
498 |
|
2 |
26 Feb 07 |
jari |
499 |
double R_2=0.0d; |
2 |
26 Feb 07 |
jari |
//iterate for 20 times(default) |
2 |
26 Feb 07 |
jari |
501 |
for (int iter=0; iter<fakedMatrix; iter++){ |
2 |
26 Feb 07 |
jari |
502 |
|
2 |
26 Feb 07 |
jari |
503 |
getPermutedMatrix(); |
2 |
26 Feb 07 |
jari |
504 |
R_2+=getDk(gs); |
2 |
26 Feb 07 |
jari |
505 |
} |
2 |
26 Feb 07 |
jari |
506 |
R_2/=fakedMatrix; |
2 |
26 Feb 07 |
jari |
507 |
return R_2; |
2 |
26 Feb 07 |
jari |
508 |
|
2 |
26 Feb 07 |
jari |
509 |
} |
2 |
26 Feb 07 |
jari |
510 |
|
2 |
26 Feb 07 |
jari |
511 |
public void getPermutedMatrix(){ |
2 |
26 Feb 07 |
jari |
512 |
|
2 |
26 Feb 07 |
jari |
513 |
double temp; |
2 |
26 Feb 07 |
jari |
514 |
int gene1, gene2; |
2 |
26 Feb 07 |
jari |
515 |
for(int i=0;i<n;i++){ |
2 |
26 Feb 07 |
jari |
//permute 5 elements for each row |
2 |
26 Feb 07 |
jari |
517 |
for (int j=0;j<swapTime;j++) { |
2 |
26 Feb 07 |
jari |
518 |
Random MyRandom= new Random(); |
2 |
26 Feb 07 |
jari |
519 |
gene1=(int)Math.floor(MyRandom.nextFloat()*m); |
2 |
26 Feb 07 |
jari |
520 |
gene1=Math.min(gene1,m-1); |
2 |
26 Feb 07 |
jari |
521 |
temp=workingMatrix.get(i, gene1); |
2 |
26 Feb 07 |
jari |
522 |
gene2=(int)Math.floor(MyRandom.nextFloat()*m); |
2 |
26 Feb 07 |
jari |
523 |
gene2=Math.min(gene2,m-1); |
2 |
26 Feb 07 |
jari |
524 |
workingMatrix.set(i, gene1, workingMatrix.get(i, gene2)); |
2 |
26 Feb 07 |
jari |
525 |
workingMatrix.set(i, gene2, temp); |
2 |
26 Feb 07 |
jari |
526 |
} |
2 |
26 Feb 07 |
jari |
527 |
} |
2 |
26 Feb 07 |
jari |
528 |
} |
2 |
26 Feb 07 |
jari |
529 |
|
2 |
26 Feb 07 |
jari |
530 |
public void updateMatrix(){ |
2 |
26 Feb 07 |
jari |
531 |
|
2 |
26 Feb 07 |
jari |
532 |
double[][] AveGene= new double[1][m]; |
2 |
26 Feb 07 |
jari |
533 |
|
2 |
26 Feb 07 |
jari |
//workingMatrix=(Matrix)dataMatrix.clone(); |
2 |
26 Feb 07 |
jari |
535 |
FloatMatrix AG=resultClusters[CreatedCluster].getAveGene(); |
2 |
26 Feb 07 |
jari |
536 |
for(int i=0; i<m; i++){ |
2 |
26 Feb 07 |
jari |
537 |
|
2 |
26 Feb 07 |
jari |
538 |
AveGene[0][i]=(double)AG.get(0,i); |
2 |
26 Feb 07 |
jari |
539 |
} |
2 |
26 Feb 07 |
jari |
540 |
Matrix AveG=new Matrix(AveGene); |
2 |
26 Feb 07 |
jari |
541 |
Matrix I = Matrix.identity(m,m); |
2 |
26 Feb 07 |
jari |
542 |
Matrix Projector= I.minus((AveG.transpose()).times(AveG)); |
2 |
26 Feb 07 |
jari |
543 |
dataMatrix=dataMatrix.times(Projector); |
2 |
26 Feb 07 |
jari |
544 |
|
2 |
26 Feb 07 |
jari |
545 |
} |
2 |
26 Feb 07 |
jari |
546 |
|
2 |
26 Feb 07 |
jari |
547 |
/**********************************************/ |
2 |
26 Feb 07 |
jari |
548 |
|
2 |
26 Feb 07 |
jari |
549 |
private NodeValueList calculateHierarchicalTree(int[] features, int method, boolean genes, boolean experiments) throws AlgorithmException { |
2 |
26 Feb 07 |
jari |
550 |
NodeValueList nodeList = new NodeValueList(); |
2 |
26 Feb 07 |
jari |
551 |
AlgorithmData data = new AlgorithmData(); |
2 |
26 Feb 07 |
jari |
552 |
FloatMatrix experiment; |
2 |
26 Feb 07 |
jari |
553 |
|
2 |
26 Feb 07 |
jari |
554 |
if(gshGenes) |
2 |
26 Feb 07 |
jari |
555 |
experiment = getSubExperiment(this.expMatrix, features); |
2 |
26 Feb 07 |
jari |
556 |
else |
2 |
26 Feb 07 |
jari |
557 |
experiment = getSubExperimentReducedCols(this.expMatrix, features); |
2 |
26 Feb 07 |
jari |
558 |
|
2 |
26 Feb 07 |
jari |
559 |
data.addMatrix("experiment", experiment); |
2 |
26 Feb 07 |
jari |
560 |
data.addParam("hcl-distance-function", String.valueOf(this.hcl_function)); |
2 |
26 Feb 07 |
jari |
561 |
data.addParam("hcl-distance-absolute", String.valueOf(this.hcl_absolute)); |
2 |
26 Feb 07 |
jari |
562 |
data.addParam("method-linkage", String.valueOf(method)); |
2 |
26 Feb 07 |
jari |
563 |
HCL hcl = new HCL(); |
2 |
26 Feb 07 |
jari |
564 |
AlgorithmData result; |
2 |
26 Feb 07 |
jari |
565 |
if (genes) { |
2 |
26 Feb 07 |
jari |
566 |
data.addParam("calculate-genes", String.valueOf(true)); |
2 |
26 Feb 07 |
jari |
567 |
result = hcl.execute(data); |
2 |
26 Feb 07 |
jari |
568 |
validate(result); |
2 |
26 Feb 07 |
jari |
569 |
addNodeValues(nodeList, result); |
2 |
26 Feb 07 |
jari |
570 |
} |
2 |
26 Feb 07 |
jari |
571 |
if (experiments) { |
2 |
26 Feb 07 |
jari |
572 |
data.addParam("calculate-genes", String.valueOf(false)); |
2 |
26 Feb 07 |
jari |
573 |
result = hcl.execute(data); |
2 |
26 Feb 07 |
jari |
574 |
validate(result); |
2 |
26 Feb 07 |
jari |
575 |
addNodeValues(nodeList, result); |
2 |
26 Feb 07 |
jari |
576 |
} |
2 |
26 Feb 07 |
jari |
577 |
return nodeList; |
2 |
26 Feb 07 |
jari |
578 |
} |
2 |
26 Feb 07 |
jari |
579 |
|
2 |
26 Feb 07 |
jari |
580 |
private void addNodeValues(NodeValueList target_list, AlgorithmData source_result) { |
2 |
26 Feb 07 |
jari |
581 |
target_list.addNodeValue(new NodeValue("child-1-array", source_result.getIntArray("child-1-array"))); |
2 |
26 Feb 07 |
jari |
582 |
target_list.addNodeValue(new NodeValue("child-2-array", source_result.getIntArray("child-2-array"))); |
2 |
26 Feb 07 |
jari |
583 |
target_list.addNodeValue(new NodeValue("node-order", source_result.getIntArray("node-order"))); |
2 |
26 Feb 07 |
jari |
584 |
target_list.addNodeValue(new NodeValue("height", source_result.getMatrix("height").getRowPackedCopy())); |
2 |
26 Feb 07 |
jari |
585 |
} |
2 |
26 Feb 07 |
jari |
586 |
|
2 |
26 Feb 07 |
jari |
587 |
private FloatMatrix getSubExperiment(FloatMatrix experiment, int[] features) { |
2 |
26 Feb 07 |
jari |
588 |
FloatMatrix subExperiment = new FloatMatrix(features.length, experiment.getColumnDimension()); |
2 |
26 Feb 07 |
jari |
589 |
for (int i=0; i<features.length; i++) { |
2 |
26 Feb 07 |
jari |
590 |
subExperiment.A[i] = experiment.A[features[i]]; |
2 |
26 Feb 07 |
jari |
591 |
} |
2 |
26 Feb 07 |
jari |
592 |
return subExperiment; |
2 |
26 Feb 07 |
jari |
593 |
} |
2 |
26 Feb 07 |
jari |
594 |
|
2 |
26 Feb 07 |
jari |
595 |
/** |
2 |
26 Feb 07 |
jari |
* Creates a matrix with reduced columns (samples) as during experiment clustering |
2 |
26 Feb 07 |
jari |
597 |
*/ |
2 |
26 Feb 07 |
jari |
598 |
private FloatMatrix getSubExperimentReducedCols(FloatMatrix experiment, int[] features) { |
2 |
26 Feb 07 |
jari |
599 |
FloatMatrix copyMatrix = experiment.copy(); |
2 |
26 Feb 07 |
jari |
600 |
FloatMatrix subExperiment = new FloatMatrix(features.length, copyMatrix.getColumnDimension()); |
2 |
26 Feb 07 |
jari |
601 |
for (int i=0; i<features.length; i++) { |
2 |
26 Feb 07 |
jari |
602 |
subExperiment.A[i] = copyMatrix.A[features[i]]; |
2 |
26 Feb 07 |
jari |
603 |
} |
2 |
26 Feb 07 |
jari |
604 |
subExperiment = subExperiment.transpose(); |
2 |
26 Feb 07 |
jari |
605 |
return subExperiment; |
2 |
26 Feb 07 |
jari |
606 |
} |
2 |
26 Feb 07 |
jari |
607 |
|
2 |
26 Feb 07 |
jari |
608 |
/** |
2 |
26 Feb 07 |
jari |
* Checking the result of hcl algorithm calculation. |
2 |
26 Feb 07 |
jari |
* @throws AlgorithmException, if the result is incorrect. |
2 |
26 Feb 07 |
jari |
611 |
*/ |
2 |
26 Feb 07 |
jari |
612 |
private void validate(AlgorithmData result) throws AlgorithmException { |
2 |
26 Feb 07 |
jari |
613 |
if (result.getIntArray("child-1-array") == null) { |
2 |
26 Feb 07 |
jari |
614 |
throw new AlgorithmException("parameter 'child-1-array' is null"); |
2 |
26 Feb 07 |
jari |
615 |
} |
2 |
26 Feb 07 |
jari |
616 |
if (result.getIntArray("child-2-array") == null) { |
2 |
26 Feb 07 |
jari |
617 |
throw new AlgorithmException("parameter 'child-2-array' is null"); |
2 |
26 Feb 07 |
jari |
618 |
} |
2 |
26 Feb 07 |
jari |
619 |
if (result.getIntArray("node-order") == null) { |
2 |
26 Feb 07 |
jari |
620 |
throw new AlgorithmException("parameter 'node-order' is null"); |
2 |
26 Feb 07 |
jari |
621 |
} |
2 |
26 Feb 07 |
jari |
622 |
if (result.getMatrix("height") == null) { |
2 |
26 Feb 07 |
jari |
623 |
throw new AlgorithmException("parameter 'height' is null"); |
2 |
26 Feb 07 |
jari |
624 |
} |
2 |
26 Feb 07 |
jari |
625 |
} |
2 |
26 Feb 07 |
jari |
626 |
|
2 |
26 Feb 07 |
jari |
627 |
private int[] convert2int(Vector source) { |
2 |
26 Feb 07 |
jari |
628 |
int[] int_matrix = new int[source.size()]; |
2 |
26 Feb 07 |
jari |
629 |
for (int i=0; i<int_matrix.length; i++) { |
2 |
26 Feb 07 |
jari |
630 |
int_matrix[i] = ((Integer) source.get(i)).intValue(); |
2 |
26 Feb 07 |
jari |
631 |
} |
2 |
26 Feb 07 |
jari |
632 |
return int_matrix; |
2 |
26 Feb 07 |
jari |
633 |
} |
2 |
26 Feb 07 |
jari |
634 |
|
2 |
26 Feb 07 |
jari |
635 |
|
2 |
26 Feb 07 |
jari |
636 |
|
2 |
26 Feb 07 |
jari |
637 |
private FloatMatrix getMeans(GSCluster[] clusters) { |
2 |
26 Feb 07 |
jari |
638 |
FloatMatrix means = new FloatMatrix(clusters.length, number_of_samples); |
2 |
26 Feb 07 |
jari |
639 |
FloatMatrix mean; |
2 |
26 Feb 07 |
jari |
640 |
for (int i=0; i<clusters.length; i++) { |
2 |
26 Feb 07 |
jari |
641 |
mean = clusters[i].getMean(); |
2 |
26 Feb 07 |
jari |
642 |
means.A[i] = mean.A[0]; |
2 |
26 Feb 07 |
jari |
643 |
} |
2 |
26 Feb 07 |
jari |
644 |
return means; |
2 |
26 Feb 07 |
jari |
645 |
} |
2 |
26 Feb 07 |
jari |
646 |
|
2 |
26 Feb 07 |
jari |
647 |
private FloatMatrix getVariances(GSCluster[] clusters, FloatMatrix means) { |
2 |
26 Feb 07 |
jari |
648 |
final int rows = means.getRowDimension(); |
2 |
26 Feb 07 |
jari |
649 |
final int columns = means.getColumnDimension(); |
2 |
26 Feb 07 |
jari |
650 |
FloatMatrix variances = new FloatMatrix(rows, columns); |
2 |
26 Feb 07 |
jari |
651 |
for (int row=0; row<rows; row++) { |
2 |
26 Feb 07 |
jari |
652 |
for (int column=0; column<columns; column++) { |
2 |
26 Feb 07 |
jari |
653 |
variances.set(row, column, getSampleVariance(clusters[row], column, means.get(row, column))); |
2 |
26 Feb 07 |
jari |
654 |
} |
2 |
26 Feb 07 |
jari |
655 |
} |
2 |
26 Feb 07 |
jari |
656 |
return variances; |
2 |
26 Feb 07 |
jari |
657 |
} |
2 |
26 Feb 07 |
jari |
658 |
|
2 |
26 Feb 07 |
jari |
659 |
private float getSampleNormalizedSum(GSCluster cluster, int column, float mean) { |
2 |
26 Feb 07 |
jari |
660 |
final int size = cluster.size(); |
2 |
26 Feb 07 |
jari |
661 |
float sum = 0f; |
2 |
26 Feb 07 |
jari |
662 |
float value; |
2 |
26 Feb 07 |
jari |
663 |
|
2 |
26 Feb 07 |
jari |
664 |
validN = 0; |
2 |
26 Feb 07 |
jari |
665 |
|
2 |
26 Feb 07 |
jari |
666 |
for (int i=0; i<size; i++) { |
2 |
26 Feb 07 |
jari |
667 |
value = expMatrix.get(((Integer) cluster.get(i)).intValue(), column); |
2 |
26 Feb 07 |
jari |
668 |
if (!Float.isNaN(value)) { |
2 |
26 Feb 07 |
jari |
669 |
sum += Math.pow(value-mean, 2); |
2 |
26 Feb 07 |
jari |
670 |
validN++; |
2 |
26 Feb 07 |
jari |
671 |
} |
2 |
26 Feb 07 |
jari |
672 |
} |
2 |
26 Feb 07 |
jari |
673 |
return sum; |
2 |
26 Feb 07 |
jari |
674 |
} |
2 |
26 Feb 07 |
jari |
675 |
|
2 |
26 Feb 07 |
jari |
676 |
private float getSampleVariance(GSCluster cluster, int column, float mean) { |
2 |
26 Feb 07 |
jari |
677 |
return(float)Math.sqrt(getSampleNormalizedSum(cluster, column, mean)/(float) (validN - 1)); |
2 |
26 Feb 07 |
jari |
678 |
} |
2 |
26 Feb 07 |
jari |
679 |
|
2 |
26 Feb 07 |
jari |
680 |
/***********************************************/ |
2 |
26 Feb 07 |
jari |
681 |
|
2 |
26 Feb 07 |
jari |
682 |
|
2 |
26 Feb 07 |
jari |
683 |
private class GSCluster extends Vector { |
2 |
26 Feb 07 |
jari |
684 |
|
2 |
26 Feb 07 |
jari |
685 |
private FloatMatrix AveGene = new FloatMatrix(1,m); |
2 |
26 Feb 07 |
jari |
686 |
private FloatMatrix mean = new FloatMatrix(1,m); |
2 |
26 Feb 07 |
jari |
687 |
|
2 |
26 Feb 07 |
jari |
688 |
public GSCluster(){} |
2 |
26 Feb 07 |
jari |
689 |
|
2 |
26 Feb 07 |
jari |
690 |
public FloatMatrix getAveGene() { |
2 |
26 Feb 07 |
jari |
691 |
double CurrentMean; |
2 |
26 Feb 07 |
jari |
692 |
int n=size(); |
2 |
26 Feb 07 |
jari |
693 |
float Value; |
2 |
26 Feb 07 |
jari |
694 |
for (int i=0; i<m; i++) { |
2 |
26 Feb 07 |
jari |
695 |
CurrentMean=0.0d; |
2 |
26 Feb 07 |
jari |
696 |
for (int j=0; j<n; j++) { |
2 |
26 Feb 07 |
jari |
697 |
Value= (float) workingMatrix.get(((Integer)get(j)).intValue(),i); |
2 |
26 Feb 07 |
jari |
698 |
if (!Float.isNaN(Value)) CurrentMean += Value; |
2 |
26 Feb 07 |
jari |
699 |
} |
2 |
26 Feb 07 |
jari |
700 |
AveGene.set(0,i,(float)(CurrentMean/(double)n)); |
2 |
26 Feb 07 |
jari |
701 |
} |
2 |
26 Feb 07 |
jari |
702 |
return AveGene; |
2 |
26 Feb 07 |
jari |
703 |
} |
2 |
26 Feb 07 |
jari |
704 |
|
2 |
26 Feb 07 |
jari |
705 |
public Vector fGenes() { |
2 |
26 Feb 07 |
jari |
706 |
Vector floatVector = new Vector(); |
2 |
26 Feb 07 |
jari |
707 |
|
2 |
26 Feb 07 |
jari |
708 |
for (int i = 0; i < this.size(); i++) { |
2 |
26 Feb 07 |
jari |
709 |
floatVector.addElement(new Float(((Integer) this.elementAt(i)).intValue())); |
2 |
26 Feb 07 |
jari |
710 |
} |
2 |
26 Feb 07 |
jari |
711 |
|
2 |
26 Feb 07 |
jari |
712 |
return floatVector; |
2 |
26 Feb 07 |
jari |
713 |
} |
2 |
26 Feb 07 |
jari |
714 |
|
2 |
26 Feb 07 |
jari |
715 |
public void calculateMean() { |
2 |
26 Feb 07 |
jari |
716 |
float currentMean; |
2 |
26 Feb 07 |
jari |
717 |
int n = size(); |
2 |
26 Feb 07 |
jari |
718 |
int denom; |
2 |
26 Feb 07 |
jari |
719 |
float value; |
2 |
26 Feb 07 |
jari |
720 |
|
2 |
26 Feb 07 |
jari |
721 |
for (int i=0; i<number_of_samples; i++) { |
2 |
26 Feb 07 |
jari |
722 |
currentMean = 0f; |
2 |
26 Feb 07 |
jari |
723 |
denom = 0; |
2 |
26 Feb 07 |
jari |
724 |
for (int j=0; j<n; j++) { |
2 |
26 Feb 07 |
jari |
725 |
value = expMatrix.get(((Integer) get(j)).intValue(), i); |
2 |
26 Feb 07 |
jari |
726 |
if (!Float.isNaN(value)) { |
2 |
26 Feb 07 |
jari |
727 |
currentMean += value; |
2 |
26 Feb 07 |
jari |
728 |
denom++; |
2 |
26 Feb 07 |
jari |
729 |
} |
2 |
26 Feb 07 |
jari |
730 |
} |
2 |
26 Feb 07 |
jari |
731 |
mean.set(0, i, currentMean/(float) denom); |
2 |
26 Feb 07 |
jari |
732 |
} |
2 |
26 Feb 07 |
jari |
733 |
} |
2 |
26 Feb 07 |
jari |
734 |
|
2 |
26 Feb 07 |
jari |
735 |
public FloatMatrix getMean() { |
2 |
26 Feb 07 |
jari |
736 |
calculateMean(); |
2 |
26 Feb 07 |
jari |
737 |
return mean; |
2 |
26 Feb 07 |
jari |
738 |
} |
2 |
26 Feb 07 |
jari |
739 |
} |
2 |
26 Feb 07 |
jari |
740 |
|
2 |
26 Feb 07 |
jari |
741 |
|
2 |
26 Feb 07 |
jari |
742 |
} |
2 |
26 Feb 07 |
jari |
743 |
|
2 |
26 Feb 07 |
jari |
744 |
|