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/* |
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Copyright @ 1999-2003, 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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* $RCSfile: CastClust.java,v $ |
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* $Revision: 1.4 $ |
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* $Date: 2006/02/23 20:59:45 $ |
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* $Author: caliente $ |
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* $State: Exp $ |
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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.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.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.Algorithm; |
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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.util.FloatMatrix; |
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import org.tigr.util.awt.ProgressDialog; |
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|
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public class CastClust extends AbstractAlgorithm { |
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private boolean stop = false; |
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public boolean runInside = false; |
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private int function; |
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private float factor; |
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private boolean absolute; |
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private boolean castGenes; |
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|
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private FloatMatrix expMatrix; |
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|
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private FloatMatrix SimMatrix; |
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private CTCluster unassigned; |
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private CTCluster openCluster; |
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private int CurrentCluster; |
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private int m; // m = number_of_samples |
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private int n; //n = number_of_genes |
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private int maxGene, minGene; |
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private float maxA, minA; |
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private int maxIndex, minIndex; |
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public int clusterCount; |
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private boolean changesOccur; |
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private boolean pearson=false; |
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public float threshold=0.5f; |
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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 boolean Stop; |
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private int DistanceFunction; |
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|
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private ProgressDialog PD; |
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|
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private double zeroValue; |
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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 CastClust() { |
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} |
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|
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public CastClust(boolean runInside) { |
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this.runInside = runInside; |
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} |
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|
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public AlgorithmData execute(AlgorithmData data) throws AlgorithmException { |
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clusterCount = 0; |
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AlgorithmParameters map = data.getParams(); |
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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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threshold = map.getFloat("threshold", 0.5f); |
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castGenes = map.getBoolean("cast-cluster-genes", true); |
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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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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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this.expMatrix = data.getMatrix("experiment"); |
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n = this.expMatrix.getRowDimension(); //n = number_of_genes |
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m = this.expMatrix.getColumnDimension();//m = number_of_samples |
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SimMatrix = new FloatMatrix(n,n); |
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|
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JFrame dummyFrame = new JFrame(); |
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PD = new ProgressDialog(dummyFrame, "CAST Progression", false, 4); |
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|
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java.awt.Dimension screenDim = java.awt.Toolkit.getDefaultToolkit().getScreenSize(); |
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PD.setSize(450,255); |
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PD.setLocation((screenDim.width - PD.getWidth())/2, (screenDim.height - PD.getHeight())/2); |
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|
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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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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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JPanel progressPanel = PD.getLabelPanel(); |
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JPanel superPanel = new JPanel(); |
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superPanel.setLayout(new BorderLayout()); |
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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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|
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CTCluster[] clusters = calculate(runInside); |
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|
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for (int i = 0; i < clusters.length; i++) { |
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if (clusters[i] == null) System.out.println("Null Cluster: " + i); |
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} |
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|
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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].genes); |
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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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return result; |
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|
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} |
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|
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|
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public void abort() { |
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stop = true; |
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} |
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|
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CTCluster[] calculate(boolean runInside) { |
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|
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StartTime = System.currentTimeMillis(); |
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|
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if (! runInside) { |
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|
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PD.setMessage(0, clusterCount+" clusters created."); |
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if(this.castGenes){ |
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PD.setMessage(1, 0+" genes have been assigned to clusters."); |
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PD.setMessage(2, n+" genes left to be assigned to clusters."); |
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} |
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else{ |
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PD.setMessage(1, 0+" experiments have been assigned to clusters."); |
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PD.setMessage(2, n+" experiments left to be assigned to clusters."); |
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} |
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PD.setTimerLabel(3,"Running for ", " seconds.", 1000); |
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PD.setVisible(true); |
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} |
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|
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getSimMatrix(); |
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|
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CTCluster[] clusters = new CTCluster[n]; |
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unassigned = new CTCluster(); |
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for (int i = 0; i < n; i++) { |
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unassigned.add(i); |
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} |
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|
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while (unassigned.count != 0) { |
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// start a new cluster |
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openCluster = new CTCluster(); |
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|
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// reset affinity |
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for (int i = 0; i < unassigned.count; i++) { |
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(unassigned.affinity).set(i,new Float(0)); |
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} |
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|
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do{ |
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changesOccur = false; |
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float theFloat; |
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|
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// ADD: |
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while (getMaxAffinityGene() && (maxA >= threshold * openCluster.count)) { |
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//System.out.println("adding..."+maxA); |
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unassigned.move(maxIndex, openCluster); |
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|
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for (int i = 0; i < unassigned.count; i++) { |
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theFloat = ((Float) unassigned.affinity.elementAt(i)).floatValue(); |
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theFloat += SimMatrix.get(((Integer)((unassigned.genes).elementAt(i))).intValue(), maxGene); |
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unassigned.affinity.setElementAt((new Float(theFloat)), i); |
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//System.out.println("Add, unassigned: " + theFloat); |
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} |
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for (int i = 0; i < openCluster.count; i++) { |
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theFloat = ((Float) openCluster.affinity.elementAt(i)).floatValue(); |
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theFloat += SimMatrix.get(((Integer)((openCluster.genes).elementAt(i))).intValue(), maxGene); |
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openCluster.affinity.setElementAt((new Float(theFloat)), i); |
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//System.out.println("Add, openCluster: " + theFloat); |
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} |
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changesOccur = true; |
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getMaxAffinityGene(); |
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|
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//System.out.println("+ unassigned = " + unassigned.count); |
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//System.out.println("+ openCluster = " + openCluster.count); |
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|
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} |
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|
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// REMOVE: |
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if (minA != zeroValue) { |
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while (getMinAffinityGene() && (minA < threshold * openCluster.count)) { |
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|
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//System.out.println("removing..."+minA); |
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openCluster.move(minIndex, unassigned); |
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|
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for (int i = 0; i < unassigned.count; i++) { |
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theFloat = ((Float) unassigned.affinity.elementAt(i)).floatValue(); |
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theFloat -= SimMatrix.get(((Integer)((unassigned.genes).elementAt(i))).intValue(), minGene); |
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unassigned.affinity.setElementAt((new Float(theFloat)), i); |
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//System.out.println("Remove, unassigned: " + theFloat); |
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} |
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for (int i = 0; i < openCluster.count; i++) { |
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theFloat = ((Float) openCluster.affinity.elementAt(i)).floatValue(); |
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theFloat -= SimMatrix.get(((Integer)((openCluster.genes).elementAt(i))).intValue(), minGene); |
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openCluster.affinity.setElementAt((new Float(theFloat)), i); |
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//System.out.println("Remove, openCluster: " + theFloat); |
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} |
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changesOccur = true; |
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getMinAffinityGene(); |
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|
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//System.out.println("- unassigned = " + unassigned.count); |
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//System.out.println("- openCluster = " + openCluster.count); |
2 |
26 Feb 07 |
jari |
268 |
|
2 |
26 Feb 07 |
jari |
269 |
} |
2 |
26 Feb 07 |
jari |
270 |
} |
2 |
26 Feb 07 |
jari |
271 |
|
2 |
26 Feb 07 |
jari |
272 |
} while (changesOccur); |
2 |
26 Feb 07 |
jari |
273 |
|
2 |
26 Feb 07 |
jari |
//System.out.println("n = " + n); |
2 |
26 Feb 07 |
jari |
//System.out.println("Currently: " + clusterCount); |
2 |
26 Feb 07 |
jari |
276 |
|
2 |
26 Feb 07 |
jari |
277 |
if (! runInside) { |
2 |
26 Feb 07 |
jari |
278 |
PD.setMessage(0, clusterCount+" clusters created."); |
2 |
26 Feb 07 |
jari |
279 |
if(this.castGenes){ |
2 |
26 Feb 07 |
jari |
280 |
PD.setMessage(1, (n-unassigned.count)+" genes have been assigned to clusters."); |
2 |
26 Feb 07 |
jari |
281 |
PD.setMessage(2, unassigned.count+" genes left to be assigned to clusters."); |
2 |
26 Feb 07 |
jari |
282 |
} |
2 |
26 Feb 07 |
jari |
283 |
else{ |
2 |
26 Feb 07 |
jari |
284 |
PD.setMessage(1, (n-unassigned.count)+" experiments have been assigned to clusters."); |
2 |
26 Feb 07 |
jari |
285 |
PD.setMessage(2, unassigned.count+" experiments left to be assigned to clusters."); |
2 |
26 Feb 07 |
jari |
286 |
} |
2 |
26 Feb 07 |
jari |
287 |
} |
2 |
26 Feb 07 |
jari |
288 |
|
2 |
26 Feb 07 |
jari |
289 |
if (clusterCount < n) clusters[clusterCount++] = openCluster; |
2 |
26 Feb 07 |
jari |
290 |
openCluster = null; |
2 |
26 Feb 07 |
jari |
291 |
} |
2 |
26 Feb 07 |
jari |
292 |
|
2 |
26 Feb 07 |
jari |
293 |
if (! runInside) {PD.dismiss();} |
2 |
26 Feb 07 |
jari |
294 |
|
2 |
26 Feb 07 |
jari |
//System.out.println(clusterCount + " clusters found"); |
2 |
26 Feb 07 |
jari |
//MakeCluster(); |
2 |
26 Feb 07 |
jari |
297 |
|
2 |
26 Feb 07 |
jari |
298 |
CTCluster[] trueClusters = new CTCluster[clusterCount]; |
2 |
26 Feb 07 |
jari |
299 |
for (int i = 0; i < clusterCount; i++) { |
2 |
26 Feb 07 |
jari |
300 |
trueClusters[i] = clusters[i]; |
2 |
26 Feb 07 |
jari |
301 |
} |
2 |
26 Feb 07 |
jari |
302 |
|
2 |
26 Feb 07 |
jari |
//GeneClusterPointers=new GeneCluster[clusterCount]; |
2 |
26 Feb 07 |
jari |
304 |
CalculationTime=System.currentTimeMillis()-StartTime; |
2 |
26 Feb 07 |
jari |
305 |
|
2 |
26 Feb 07 |
jari |
//return clusters; |
2 |
26 Feb 07 |
jari |
307 |
return trueClusters; |
2 |
26 Feb 07 |
jari |
308 |
} |
2 |
26 Feb 07 |
jari |
309 |
|
2 |
26 Feb 07 |
jari |
310 |
|
2 |
26 Feb 07 |
jari |
311 |
private NodeValueList calculateHierarchicalTree(int[] features, int method, boolean genes, boolean experiments) throws AlgorithmException { |
2 |
26 Feb 07 |
jari |
312 |
NodeValueList nodeList = new NodeValueList(); |
2 |
26 Feb 07 |
jari |
313 |
AlgorithmData data = new AlgorithmData(); |
2 |
26 Feb 07 |
jari |
314 |
FloatMatrix experiment; |
2 |
26 Feb 07 |
jari |
315 |
if(castGenes) |
2 |
26 Feb 07 |
jari |
316 |
experiment = getSubExperiment(this.expMatrix, features); |
2 |
26 Feb 07 |
jari |
317 |
else |
2 |
26 Feb 07 |
jari |
318 |
experiment = getSubExperimentReducedCols(this.expMatrix, features); |
2 |
26 Feb 07 |
jari |
319 |
data.addMatrix("experiment", experiment); |
2 |
26 Feb 07 |
jari |
320 |
data.addParam("hcl-distance-function", String.valueOf(this.hcl_function)); |
2 |
26 Feb 07 |
jari |
321 |
data.addParam("hcl-distance-absolute", String.valueOf(this.hcl_absolute)); |
2 |
26 Feb 07 |
jari |
322 |
data.addParam("method-linkage", String.valueOf(method)); |
2 |
26 Feb 07 |
jari |
323 |
HCL hcl = new HCL(); |
2 |
26 Feb 07 |
jari |
324 |
AlgorithmData result; |
2 |
26 Feb 07 |
jari |
325 |
if (genes) { |
2 |
26 Feb 07 |
jari |
326 |
data.addParam("calculate-genes", String.valueOf(true)); |
2 |
26 Feb 07 |
jari |
327 |
result = hcl.execute(data); |
2 |
26 Feb 07 |
jari |
328 |
validate(result); |
2 |
26 Feb 07 |
jari |
329 |
addNodeValues(nodeList, result); |
2 |
26 Feb 07 |
jari |
330 |
} |
2 |
26 Feb 07 |
jari |
331 |
if (experiments) { |
2 |
26 Feb 07 |
jari |
332 |
data.addParam("calculate-genes", String.valueOf(false)); |
2 |
26 Feb 07 |
jari |
333 |
result = hcl.execute(data); |
2 |
26 Feb 07 |
jari |
334 |
validate(result); |
2 |
26 Feb 07 |
jari |
335 |
addNodeValues(nodeList, result); |
2 |
26 Feb 07 |
jari |
336 |
} |
2 |
26 Feb 07 |
jari |
337 |
return nodeList; |
2 |
26 Feb 07 |
jari |
338 |
} |
2 |
26 Feb 07 |
jari |
339 |
|
2 |
26 Feb 07 |
jari |
340 |
|
2 |
26 Feb 07 |
jari |
341 |
private void addNodeValues(NodeValueList target_list, AlgorithmData source_result) { |
2 |
26 Feb 07 |
jari |
342 |
target_list.addNodeValue(new NodeValue("child-1-array", source_result.getIntArray("child-1-array"))); |
2 |
26 Feb 07 |
jari |
343 |
target_list.addNodeValue(new NodeValue("child-2-array", source_result.getIntArray("child-2-array"))); |
2 |
26 Feb 07 |
jari |
344 |
target_list.addNodeValue(new NodeValue("node-order", source_result.getIntArray("node-order"))); |
2 |
26 Feb 07 |
jari |
345 |
target_list.addNodeValue(new NodeValue("height", source_result.getMatrix("height").getRowPackedCopy())); |
2 |
26 Feb 07 |
jari |
346 |
} |
2 |
26 Feb 07 |
jari |
347 |
|
2 |
26 Feb 07 |
jari |
348 |
private FloatMatrix getSubExperiment(FloatMatrix experiment, int[] features) { |
2 |
26 Feb 07 |
jari |
349 |
FloatMatrix subExperiment = new FloatMatrix(features.length, experiment.getColumnDimension()); |
2 |
26 Feb 07 |
jari |
350 |
for (int i=0; i<features.length; i++) { |
2 |
26 Feb 07 |
jari |
351 |
subExperiment.A[i] = experiment.A[features[i]]; |
2 |
26 Feb 07 |
jari |
352 |
} |
2 |
26 Feb 07 |
jari |
353 |
return subExperiment; |
2 |
26 Feb 07 |
jari |
354 |
} |
2 |
26 Feb 07 |
jari |
355 |
|
2 |
26 Feb 07 |
jari |
356 |
/** |
2 |
26 Feb 07 |
jari |
* Creates a matrix with reduced columns (samples) as during experiment clustering |
2 |
26 Feb 07 |
jari |
358 |
*/ |
2 |
26 Feb 07 |
jari |
359 |
private FloatMatrix getSubExperimentReducedCols(FloatMatrix experiment, int[] features) { |
2 |
26 Feb 07 |
jari |
360 |
FloatMatrix copyMatrix = experiment.copy(); |
2 |
26 Feb 07 |
jari |
361 |
FloatMatrix subExperiment = new FloatMatrix(features.length, copyMatrix.getColumnDimension()); |
2 |
26 Feb 07 |
jari |
362 |
for (int i=0; i<features.length; i++) { |
2 |
26 Feb 07 |
jari |
363 |
subExperiment.A[i] = copyMatrix.A[features[i]]; |
2 |
26 Feb 07 |
jari |
364 |
} |
2 |
26 Feb 07 |
jari |
365 |
subExperiment = subExperiment.transpose(); |
2 |
26 Feb 07 |
jari |
366 |
return subExperiment; |
2 |
26 Feb 07 |
jari |
367 |
} |
2 |
26 Feb 07 |
jari |
368 |
|
2 |
26 Feb 07 |
jari |
369 |
/** |
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 |
372 |
*/ |
2 |
26 Feb 07 |
jari |
373 |
private void validate(AlgorithmData result) throws AlgorithmException { |
2 |
26 Feb 07 |
jari |
374 |
if (result.getIntArray("child-1-array") == null) { |
2 |
26 Feb 07 |
jari |
375 |
throw new AlgorithmException("parameter 'child-1-array' is null"); |
2 |
26 Feb 07 |
jari |
376 |
} |
2 |
26 Feb 07 |
jari |
377 |
if (result.getIntArray("child-2-array") == null) { |
2 |
26 Feb 07 |
jari |
378 |
throw new AlgorithmException("parameter 'child-2-array' is null"); |
2 |
26 Feb 07 |
jari |
379 |
} |
2 |
26 Feb 07 |
jari |
380 |
if (result.getIntArray("node-order") == null) { |
2 |
26 Feb 07 |
jari |
381 |
throw new AlgorithmException("parameter 'node-order' is null"); |
2 |
26 Feb 07 |
jari |
382 |
} |
2 |
26 Feb 07 |
jari |
383 |
if (result.getMatrix("height") == null) { |
2 |
26 Feb 07 |
jari |
384 |
throw new AlgorithmException("parameter 'height' is null"); |
2 |
26 Feb 07 |
jari |
385 |
} |
2 |
26 Feb 07 |
jari |
386 |
} |
2 |
26 Feb 07 |
jari |
387 |
|
2 |
26 Feb 07 |
jari |
388 |
private int[] convert2int(Vector source) { |
2 |
26 Feb 07 |
jari |
389 |
int[] int_matrix = new int[source.size()]; |
2 |
26 Feb 07 |
jari |
390 |
for (int i=0; i<int_matrix.length; i++) { |
2 |
26 Feb 07 |
jari |
391 |
int_matrix[i] = (int)((Integer)source.get(i)).intValue(); |
2 |
26 Feb 07 |
jari |
392 |
} |
2 |
26 Feb 07 |
jari |
393 |
return int_matrix; |
2 |
26 Feb 07 |
jari |
394 |
} |
2 |
26 Feb 07 |
jari |
395 |
|
2 |
26 Feb 07 |
jari |
396 |
|
2 |
26 Feb 07 |
jari |
397 |
synchronized float getDistance(int gene1, int gene2) { |
2 |
26 Feb 07 |
jari |
398 |
double distance = 0; |
2 |
26 Feb 07 |
jari |
399 |
|
2 |
26 Feb 07 |
jari |
400 |
if((function == Algorithm.DEFAULT)||(function == Algorithm.COSINE) |
2 |
26 Feb 07 |
jari |
401 |
||(function == Algorithm.COVARIANCE)||(function == Algorithm.EUCLIDEAN) |
2 |
26 Feb 07 |
jari |
402 |
||(function == Algorithm.DOTPRODUCT)||(function == Algorithm.MANHATTAN) |
2 |
26 Feb 07 |
jari |
403 |
||(function == Algorithm.SPEARMANRANK)||(function == Algorithm.KENDALLSTAU) |
2 |
26 Feb 07 |
jari |
404 |
||(function == Algorithm.MUTUALINFORMATION)){ |
2 |
26 Feb 07 |
jari |
// ONLY EUCLIDEAN OR PEARSON IS USED IN THE CALCULATION!!!! |
2 |
26 Feb 07 |
jari |
406 |
distance = ExperimentUtil.geneDistance(expMatrix, null, gene1, gene2, Algorithm.EUCLIDEAN, factor, absolute); |
2 |
26 Feb 07 |
jari |
407 |
|
2 |
26 Feb 07 |
jari |
408 |
} |
2 |
26 Feb 07 |
jari |
409 |
else if((function == Algorithm.PEARSON)||(function == Algorithm.PEARSONUNCENTERED) |
2 |
26 Feb 07 |
jari |
410 |
||(function == Algorithm.PEARSONSQARED)) { |
2 |
26 Feb 07 |
jari |
411 |
|
2 |
26 Feb 07 |
jari |
412 |
if (absolute) { |
2 |
26 Feb 07 |
jari |
413 |
distance = Math.abs(ExperimentUtil.geneDistance(expMatrix, null, gene1, gene2, Algorithm.PEARSON, factor, absolute)); |
2 |
26 Feb 07 |
jari |
414 |
} else { |
2 |
26 Feb 07 |
jari |
415 |
distance = ExperimentUtil.geneDistance(expMatrix, null, gene1, gene2, Algorithm.PEARSON, factor, absolute); |
2 |
26 Feb 07 |
jari |
416 |
} |
2 |
26 Feb 07 |
jari |
417 |
} |
2 |
26 Feb 07 |
jari |
418 |
|
2 |
26 Feb 07 |
jari |
//System.out.println(distance); |
2 |
26 Feb 07 |
jari |
420 |
|
2 |
26 Feb 07 |
jari |
421 |
return (float) distance; |
2 |
26 Feb 07 |
jari |
422 |
} |
2 |
26 Feb 07 |
jari |
423 |
|
2 |
26 Feb 07 |
jari |
424 |
|
2 |
26 Feb 07 |
jari |
425 |
synchronized void getSimMatrix(){//calculate the similarity matrix |
2 |
26 Feb 07 |
jari |
426 |
int i,j; |
2 |
26 Feb 07 |
jari |
427 |
float sim; |
2 |
26 Feb 07 |
jari |
428 |
float maxSim = 0; |
2 |
26 Feb 07 |
jari |
429 |
|
2 |
26 Feb 07 |
jari |
430 |
if((function == Algorithm.PEARSON)||(function == Algorithm.PEARSONUNCENTERED) |
2 |
26 Feb 07 |
jari |
431 |
||(function == Algorithm.PEARSONSQARED)) { |
2 |
26 Feb 07 |
jari |
432 |
pearson=true; |
2 |
26 Feb 07 |
jari |
433 |
} |
2 |
26 Feb 07 |
jari |
434 |
|
2 |
26 Feb 07 |
jari |
435 |
if (absolute) { |
2 |
26 Feb 07 |
jari |
436 |
zeroValue = 0; |
2 |
26 Feb 07 |
jari |
437 |
} else { |
2 |
26 Feb 07 |
jari |
438 |
zeroValue = 0.5; |
2 |
26 Feb 07 |
jari |
439 |
} |
2 |
26 Feb 07 |
jari |
440 |
|
2 |
26 Feb 07 |
jari |
441 |
if(pearson){ |
2 |
26 Feb 07 |
jari |
442 |
for (i=0;i<n;i++){ |
2 |
26 Feb 07 |
jari |
443 |
for(j=0;j<n;j++){ |
2 |
26 Feb 07 |
jari |
444 |
sim=getDistance(i,j); |
2 |
26 Feb 07 |
jari |
445 |
if (!absolute) |
2 |
26 Feb 07 |
jari |
446 |
sim = (float)(1.0 - (sim + 1.0) / 2.0); |
2 |
26 Feb 07 |
jari |
447 |
else |
2 |
26 Feb 07 |
jari |
448 |
sim = (float)((sim + 1.0)/2.0); |
2 |
26 Feb 07 |
jari |
449 |
SimMatrix.set(i,j, sim); |
2 |
26 Feb 07 |
jari |
450 |
} |
2 |
26 Feb 07 |
jari |
451 |
} |
2 |
26 Feb 07 |
jari |
452 |
|
2 |
26 Feb 07 |
jari |
453 |
}else{ |
2 |
26 Feb 07 |
jari |
454 |
|
2 |
26 Feb 07 |
jari |
455 |
for (i=0;i<n;i++){ |
2 |
26 Feb 07 |
jari |
456 |
for(j=0;j<n;j++){ |
2 |
26 Feb 07 |
jari |
457 |
sim=getDistance(i,j); |
2 |
26 Feb 07 |
jari |
458 |
if (sim > maxSim) maxSim = sim; |
2 |
26 Feb 07 |
jari |
459 |
} |
2 |
26 Feb 07 |
jari |
460 |
} |
2 |
26 Feb 07 |
jari |
461 |
|
2 |
26 Feb 07 |
jari |
462 |
for (i=0;i<n;i++){ |
2 |
26 Feb 07 |
jari |
463 |
for(j=0;j<n;j++){ |
2 |
26 Feb 07 |
jari |
464 |
sim=getDistance(i,j); |
2 |
26 Feb 07 |
jari |
465 |
sim = (float) 1 - (sim / maxSim); |
2 |
26 Feb 07 |
jari |
466 |
SimMatrix.set(i,j, sim); |
2 |
26 Feb 07 |
jari |
467 |
} |
2 |
26 Feb 07 |
jari |
468 |
} |
2 |
26 Feb 07 |
jari |
469 |
} |
2 |
26 Feb 07 |
jari |
470 |
} |
2 |
26 Feb 07 |
jari |
471 |
|
2 |
26 Feb 07 |
jari |
472 |
|
2 |
26 Feb 07 |
jari |
473 |
protected boolean getMaxAffinityGene() { |
2 |
26 Feb 07 |
jari |
474 |
|
2 |
26 Feb 07 |
jari |
475 |
if (unassigned.count == 0) |
2 |
26 Feb 07 |
jari |
476 |
return false; |
2 |
26 Feb 07 |
jari |
477 |
|
2 |
26 Feb 07 |
jari |
478 |
maxIndex = 0; |
2 |
26 Feb 07 |
jari |
479 |
maxA = ((Float)((unassigned.affinity).elementAt(0))).floatValue(); |
2 |
26 Feb 07 |
jari |
480 |
for (int i = 1; i < unassigned.count; i++) { |
2 |
26 Feb 07 |
jari |
481 |
if (((Float)((unassigned.affinity).elementAt(i))).floatValue()> maxA) { |
2 |
26 Feb 07 |
jari |
482 |
maxA = ((Float)((unassigned.affinity).elementAt(i))).floatValue(); |
2 |
26 Feb 07 |
jari |
483 |
maxIndex = i; |
2 |
26 Feb 07 |
jari |
484 |
} |
2 |
26 Feb 07 |
jari |
485 |
} |
2 |
26 Feb 07 |
jari |
486 |
maxGene =((Integer)((unassigned.genes).elementAt(maxIndex))).intValue(); |
2 |
26 Feb 07 |
jari |
487 |
return true; |
2 |
26 Feb 07 |
jari |
488 |
} |
2 |
26 Feb 07 |
jari |
489 |
|
2 |
26 Feb 07 |
jari |
490 |
protected boolean getMinAffinityGene() { |
2 |
26 Feb 07 |
jari |
491 |
if (openCluster.count == 0) |
2 |
26 Feb 07 |
jari |
492 |
return false; |
2 |
26 Feb 07 |
jari |
493 |
|
2 |
26 Feb 07 |
jari |
494 |
minIndex = 0; |
2 |
26 Feb 07 |
jari |
495 |
minA = ((Float)((openCluster.affinity).elementAt(0))).floatValue(); |
2 |
26 Feb 07 |
jari |
496 |
for (int i = 1; i < openCluster.count; i++) { |
2 |
26 Feb 07 |
jari |
497 |
if (((Float)((openCluster.affinity).elementAt(i))).floatValue() < minA) { |
2 |
26 Feb 07 |
jari |
498 |
minA = ((Float)((openCluster.affinity).elementAt(i))).floatValue(); |
2 |
26 Feb 07 |
jari |
499 |
minIndex = i; |
2 |
26 Feb 07 |
jari |
500 |
} |
2 |
26 Feb 07 |
jari |
501 |
} |
2 |
26 Feb 07 |
jari |
502 |
minGene = ((Integer)((openCluster.genes).elementAt(minIndex))).intValue(); |
2 |
26 Feb 07 |
jari |
503 |
return true; |
2 |
26 Feb 07 |
jari |
504 |
} |
2 |
26 Feb 07 |
jari |
505 |
|
2 |
26 Feb 07 |
jari |
//inner class |
2 |
26 Feb 07 |
jari |
507 |
private class CTCluster{ |
2 |
26 Feb 07 |
jari |
508 |
int count=0; |
2 |
26 Feb 07 |
jari |
509 |
Vector genes; |
2 |
26 Feb 07 |
jari |
510 |
Vector affinity; |
2 |
26 Feb 07 |
jari |
511 |
|
2 |
26 Feb 07 |
jari |
512 |
public CTCluster() { |
2 |
26 Feb 07 |
jari |
513 |
genes=new Vector(); |
2 |
26 Feb 07 |
jari |
514 |
affinity = new Vector(); |
2 |
26 Feb 07 |
jari |
515 |
|
2 |
26 Feb 07 |
jari |
516 |
} |
2 |
26 Feb 07 |
jari |
517 |
|
2 |
26 Feb 07 |
jari |
518 |
public Vector fGenes() { |
2 |
26 Feb 07 |
jari |
519 |
Vector floatVector = new Vector(); |
2 |
26 Feb 07 |
jari |
520 |
|
2 |
26 Feb 07 |
jari |
521 |
for (int i = 0; i < genes.size(); i++) { |
2 |
26 Feb 07 |
jari |
522 |
floatVector.addElement(new Float(((Integer) genes.elementAt(i)).intValue())); |
2 |
26 Feb 07 |
jari |
523 |
} |
2 |
26 Feb 07 |
jari |
524 |
|
2 |
26 Feb 07 |
jari |
525 |
return floatVector; |
2 |
26 Feb 07 |
jari |
526 |
} |
2 |
26 Feb 07 |
jari |
527 |
|
2 |
26 Feb 07 |
jari |
528 |
public void add(int g) { |
2 |
26 Feb 07 |
jari |
529 |
add(g, 0); |
2 |
26 Feb 07 |
jari |
530 |
} |
2 |
26 Feb 07 |
jari |
531 |
|
2 |
26 Feb 07 |
jari |
532 |
public void add(int g, float a) { |
2 |
26 Feb 07 |
jari |
533 |
genes.add(count,new Integer(g)); |
2 |
26 Feb 07 |
jari |
534 |
affinity.add(count,new Float(a)); |
2 |
26 Feb 07 |
jari |
535 |
count++; |
2 |
26 Feb 07 |
jari |
536 |
|
2 |
26 Feb 07 |
jari |
537 |
} |
2 |
26 Feb 07 |
jari |
538 |
|
2 |
26 Feb 07 |
jari |
539 |
|
2 |
26 Feb 07 |
jari |
540 |
public void remove(int g) { |
2 |
26 Feb 07 |
jari |
541 |
int index = -1; |
2 |
26 Feb 07 |
jari |
542 |
for (int i = 1; i <= count; i++) { |
2 |
26 Feb 07 |
jari |
543 |
if (((Integer)genes.elementAt(i)).intValue() == g) { |
2 |
26 Feb 07 |
jari |
544 |
index = i; |
2 |
26 Feb 07 |
jari |
545 |
break; |
2 |
26 Feb 07 |
jari |
546 |
} |
2 |
26 Feb 07 |
jari |
547 |
} |
2 |
26 Feb 07 |
jari |
548 |
if (index == -1) { |
2 |
26 Feb 07 |
jari |
549 |
System.err.println("cluster doesn't contain " + g); |
2 |
26 Feb 07 |
jari |
550 |
System.exit(1); |
2 |
26 Feb 07 |
jari |
551 |
} |
2 |
26 Feb 07 |
jari |
552 |
removeIndex(index); |
2 |
26 Feb 07 |
jari |
553 |
} |
2 |
26 Feb 07 |
jari |
554 |
|
2 |
26 Feb 07 |
jari |
555 |
|
2 |
26 Feb 07 |
jari |
556 |
public void removeIndex(int index) { |
2 |
26 Feb 07 |
jari |
557 |
genes.remove(index); |
2 |
26 Feb 07 |
jari |
558 |
affinity.remove(index); |
2 |
26 Feb 07 |
jari |
559 |
count--; |
2 |
26 Feb 07 |
jari |
560 |
} |
2 |
26 Feb 07 |
jari |
561 |
|
2 |
26 Feb 07 |
jari |
562 |
|
2 |
26 Feb 07 |
jari |
563 |
public void move(int index, CTCluster c){ |
2 |
26 Feb 07 |
jari |
564 |
c.add(((Integer)(genes.elementAt(index))).intValue(), ((Float)(affinity.elementAt(index))).floatValue()); |
2 |
26 Feb 07 |
jari |
565 |
removeIndex(index); |
2 |
26 Feb 07 |
jari |
566 |
} |
2 |
26 Feb 07 |
jari |
567 |
|
2 |
26 Feb 07 |
jari |
568 |
protected FloatMatrix getMean() { |
2 |
26 Feb 07 |
jari |
569 |
FloatMatrix mean = new FloatMatrix(1, m); |
2 |
26 Feb 07 |
jari |
570 |
float currentMean; |
2 |
26 Feb 07 |
jari |
571 |
int k = genes.size(); |
2 |
26 Feb 07 |
jari |
572 |
int denom; |
2 |
26 Feb 07 |
jari |
573 |
float value; |
2 |
26 Feb 07 |
jari |
574 |
for (int i=0; i<m; i++) { |
2 |
26 Feb 07 |
jari |
575 |
currentMean = 0f; |
2 |
26 Feb 07 |
jari |
576 |
denom = 0; |
2 |
26 Feb 07 |
jari |
577 |
for (int j=0; j<k; j++) { |
2 |
26 Feb 07 |
jari |
578 |
value = expMatrix.get(((Integer) genes.get(j)).intValue(), i); |
2 |
26 Feb 07 |
jari |
579 |
if (!Float.isNaN(value)) { |
2 |
26 Feb 07 |
jari |
580 |
currentMean += value; |
2 |
26 Feb 07 |
jari |
581 |
denom++; |
2 |
26 Feb 07 |
jari |
582 |
} |
2 |
26 Feb 07 |
jari |
583 |
} |
2 |
26 Feb 07 |
jari |
584 |
mean.set(0, i, currentMean/(float)denom); |
2 |
26 Feb 07 |
jari |
585 |
} |
2 |
26 Feb 07 |
jari |
586 |
|
2 |
26 Feb 07 |
jari |
587 |
return mean; |
2 |
26 Feb 07 |
jari |
588 |
} |
2 |
26 Feb 07 |
jari |
589 |
} |
2 |
26 Feb 07 |
jari |
590 |
|
2 |
26 Feb 07 |
jari |
591 |
|
2 |
26 Feb 07 |
jari |
592 |
private FloatMatrix getMeans(CTCluster[] clusters) { |
2 |
26 Feb 07 |
jari |
593 |
FloatMatrix means = new FloatMatrix(clusters.length, m); |
2 |
26 Feb 07 |
jari |
594 |
FloatMatrix mean; |
2 |
26 Feb 07 |
jari |
595 |
for (int i=0; i<clusters.length; i++) { |
2 |
26 Feb 07 |
jari |
596 |
mean = clusters[i].getMean(); |
2 |
26 Feb 07 |
jari |
597 |
means.A[i] = mean.A[0]; |
2 |
26 Feb 07 |
jari |
598 |
} |
2 |
26 Feb 07 |
jari |
599 |
return means; |
2 |
26 Feb 07 |
jari |
600 |
} |
2 |
26 Feb 07 |
jari |
601 |
|
2 |
26 Feb 07 |
jari |
602 |
private FloatMatrix getVariances(CTCluster[] clusters, FloatMatrix means) { |
2 |
26 Feb 07 |
jari |
603 |
final int rows = means.getRowDimension(); |
2 |
26 Feb 07 |
jari |
604 |
final int columns = means.getColumnDimension(); |
2 |
26 Feb 07 |
jari |
605 |
FloatMatrix variances = new FloatMatrix(rows, columns); |
2 |
26 Feb 07 |
jari |
606 |
for (int row=0; row<rows; row++) { |
2 |
26 Feb 07 |
jari |
607 |
for (int column=0; column<columns; column++) { |
2 |
26 Feb 07 |
jari |
608 |
variances.set(row, column, getSampleVariance(clusters[row], column, means.get(row, column))); |
2 |
26 Feb 07 |
jari |
609 |
} |
2 |
26 Feb 07 |
jari |
610 |
} |
2 |
26 Feb 07 |
jari |
611 |
return variances; |
2 |
26 Feb 07 |
jari |
612 |
} |
2 |
26 Feb 07 |
jari |
613 |
|
2 |
26 Feb 07 |
jari |
614 |
int validN; |
2 |
26 Feb 07 |
jari |
615 |
|
2 |
26 Feb 07 |
jari |
616 |
private float getSampleNormalizedSum(CTCluster cluster, int column, float mean) { |
2 |
26 Feb 07 |
jari |
617 |
final int size = cluster.genes.size(); |
2 |
26 Feb 07 |
jari |
618 |
float sum = 0f; |
2 |
26 Feb 07 |
jari |
619 |
float value; |
2 |
26 Feb 07 |
jari |
620 |
validN = 0; |
2 |
26 Feb 07 |
jari |
621 |
for (int i=0; i<size; i++) { |
2 |
26 Feb 07 |
jari |
622 |
value = expMatrix.get(((Integer)cluster.genes.get(i)).intValue(), column); |
2 |
26 Feb 07 |
jari |
623 |
if (!Float.isNaN(value)) { |
2 |
26 Feb 07 |
jari |
624 |
sum += Math.pow(value-mean, 2); |
2 |
26 Feb 07 |
jari |
625 |
validN++; |
2 |
26 Feb 07 |
jari |
626 |
} |
2 |
26 Feb 07 |
jari |
627 |
} |
2 |
26 Feb 07 |
jari |
628 |
return sum; |
2 |
26 Feb 07 |
jari |
629 |
} |
2 |
26 Feb 07 |
jari |
630 |
|
2 |
26 Feb 07 |
jari |
631 |
private float getSampleVariance(CTCluster cluster, int column, float mean) { |
2 |
26 Feb 07 |
jari |
632 |
return(float)Math.sqrt(getSampleNormalizedSum(cluster, column, mean)/(float)(validN-1)); |
2 |
26 Feb 07 |
jari |
633 |
} |
2 |
26 Feb 07 |
jari |
634 |
|
2 |
26 Feb 07 |
jari |
635 |
|
2 |
26 Feb 07 |
jari |
636 |
} |