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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: SOTACell.java,v $ |
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* $Revision: 1.2 $ |
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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.util.Vector; |
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|
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import org.tigr.util.FloatMatrix; |
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|
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public class SOTACell{ |
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public FloatMatrix dataMatrix; |
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|
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public SOTACell parent; |
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public SOTACell left; |
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public SOTACell right; |
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public SOTACell pred; //thread cells |
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public SOTACell succ; |
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|
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public FloatMatrix centroidGene; |
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public Vector members; |
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public double cellDiversity; |
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public double cellVariance; |
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private int numberOfSamples; |
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|
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public boolean changedMembership; |
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public SOTACell(int NumberOfSamples, FloatMatrix DataMatrix){ |
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|
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dataMatrix = DataMatrix; |
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numberOfSamples =NumberOfSamples; |
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changedMembership = false; |
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|
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centroidGene = new FloatMatrix(1,numberOfSamples); |
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|
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for(int i = 0; i < numberOfSamples; i++) |
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centroidGene.set(0,i, 0); |
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|
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members = new Vector(); |
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cellDiversity = 0; |
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cellVariance = 0; |
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parent = left = right = pred = succ = null; |
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} |
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|
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|
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public void removeMember(int geneNum){ |
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for(int i = 0; i < members.size() ; i++){ |
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if(geneNum == ((Integer)members.elementAt(i)).intValue()){ |
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members.removeElementAt(i); |
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changedMembership = true; //changedMemebership |
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break; |
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} |
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} |
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} |
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public void migrateCentroid(int geneIndex, float nu){ |
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for(int i = 0; i < numberOfSamples; i++){ |
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if(!Float.isNaN(dataMatrix.get(geneIndex,i))) |
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centroidGene.set(0,i, (float)(centroidGene.get(0,i) + ((nu)*( dataMatrix.get(geneIndex,i) - centroidGene.get(0,i) ) ))); |
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} |
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|
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} |
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public float getColumnVar(int index){ |
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int n = members.size(); |
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float sum = 0; |
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int geneIndex; |
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int numOfNaN = 0; |
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|
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float currVal; |
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for(int i = 0 ; i < n; i++){ |
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geneIndex = ((Integer)(members.elementAt(i))).intValue(); |
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currVal = dataMatrix.get(geneIndex, index); |
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if(!Float.isNaN(currVal)){ |
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sum += Math.pow(currVal - centroidGene.get(0,index) , 2 ); |
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numOfNaN++; |
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} |
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|
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} |
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if(numOfNaN > 1) |
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return (float)Math.sqrt(sum/(numOfNaN-1)); |
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else |
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return 0; |
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} |
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|
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public void addMember(int geneNum){ |
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members.add(new Integer(geneNum)); |
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changedMembership = true; |
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} |
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|
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|
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public SOTACell findSister(){ |
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|
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if(this != null){ |
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if(this.parent.left == this) |
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return this.parent.right; |
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else |
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return this.parent.left; |
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} |
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else |
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return null; |
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} |
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} //end SOTACell |