Package weka.core

Examples of weka.core.FastVector.elementAt()

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    // node to split
    BFTree nodeToSplit = (BFTree)firstElement.elementAt(0);

    // split attribute
    Attribute att = (Attribute)firstElement.elementAt(1);

    // info of split value or split string
    double splitValue = Double.NaN;
    String splitStr = null;
    if (att.isNumeric())
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    // info of split value or split string
    double splitValue = Double.NaN;
    String splitStr = null;
    if (att.isNumeric())
      splitValue = ((Double)firstElement.elementAt(2)).doubleValue();
    else {
      splitStr=((String)firstElement.elementAt(2)).toString();
    }

    // the best gini gain or information gain of this node
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    double splitValue = Double.NaN;
    String splitStr = null;
    if (att.isNumeric())
      splitValue = ((Double)firstElement.elementAt(2)).doubleValue();
    else {
      splitStr=((String)firstElement.elementAt(2)).toString();
    }

    // the best gini gain or information gain of this node
    double gain = ((Double)firstElement.elementAt(3)).doubleValue();
    ///////////////////////////////////////////////////////////////////////
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    else {
      splitStr=((String)firstElement.elementAt(2)).toString();
    }

    // the best gini gain or information gain of this node
    double gain = ((Double)firstElement.elementAt(3)).doubleValue();
    ///////////////////////////////////////////////////////////////////////

    // If no enough data to split for this node or this node can not be split find next node to split.
    if (totalWeight < 2*minNumObj || branchProps[0]==0
  || branchProps[1]==0) {
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    // because these node sorted descendingly according to gini gain or information gain.
    // (namely, gini gain or information gain of all nodes in BestFirstEelements is 0).
    if (gain==0) {
      for (int i=0; i<BestFirstElements.size(); i++) {
  FastVector element = (FastVector)BestFirstElements.elementAt(i);
  BFTree node = (BFTree)element.elementAt(0);
  node.makeLeaf(train);
      }
      BestFirstElements.removeAllElements();
      return false;
    }
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    // node to split
    //BFTree nodeToSplit = (BFTree)firstElement.elementAt(0);

    // split attribute
    Attribute att = (Attribute)firstElement.elementAt(1);

    // info of split value or split string
    double splitValue = Double.NaN;
    String splitStr = null;
    if (att.isNumeric())
View Full Code Here
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    // info of split value or split string
    double splitValue = Double.NaN;
    String splitStr = null;
    if (att.isNumeric())
      splitValue = ((Double)firstElement.elementAt(2)).doubleValue();
    else {
      splitStr=((String)firstElement.elementAt(2)).toString();
    }

    // the best gini gain or information of this node
View Full Code Here
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    double splitValue = Double.NaN;
    String splitStr = null;
    if (att.isNumeric())
      splitValue = ((Double)firstElement.elementAt(2)).doubleValue();
    else {
      splitStr=((String)firstElement.elementAt(2)).toString();
    }

    // the best gini gain or information of this node
    double gain = ((Double)firstElement.elementAt(3)).doubleValue();
    ///////////////////////////////////////////////////////////////////////
View Full Code Here
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    else {
      splitStr=((String)firstElement.elementAt(2)).toString();
    }

    // the best gini gain or information of this node
    double gain = ((Double)firstElement.elementAt(3)).doubleValue();
    ///////////////////////////////////////////////////////////////////////

    if (totalWeight < 2*minNumObj || branchProps[0]==0
  || branchProps[1]==0) {
      // remove the first element
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    // because these node sorted descendingly according to gini gain or information gain.
    // (namely, gini gain or information gain of all nodes in BestFirstEelements is 0).
    if (gain==0) {
      for (int i=0; i<BestFirstElements.size(); i++) {
  FastVector element = (FastVector)BestFirstElements.elementAt(i);
  BFTree node = (BFTree)element.elementAt(0);
  node.makeLeaf(train);
      }
      BestFirstElements.removeAllElements();
    }
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