Package weka.core

Examples of weka.core.Attribute.numValues()

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      if (attribute.isNominal()) {

  // For nominal attributes
  sums = new double[attribute.numValues()];
        sumSquared = new double[attribute.numValues()];
  sumOfWeights = new double[attribute.numValues()];
  int attVal;
  for (i = 0; i < sortedIndices.length; i++) {
    Instance inst = data.instance(sortedIndices[i]);
    if (inst.isMissing(att)) {
      break;
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          String val = a.value((int)m_ClusterCentroids.instance(j).value(i));
          if (val.length() > maxWidth) {
            maxWidth = val.length();
          }
        }
        for (int j = 0; j < a.numValues(); j++) {
          String val = a.value(j) + " ";
          if (val.length() > maxAttWidth) {
            maxAttWidth = val.length();
          }
        }
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        String stdDevVal = "";

        if (m_ClusterCentroids.attribute(i).isNominal()) {
          // Do the values of the nominal attribute
          Attribute a = m_ClusterCentroids.attribute(i);
          for (int j = 0; j < a.numValues(); j++) {
            // full data
            String val = "  " + a.value(j);
            temp.append(pad(val, " ", maxAttWidth + 1 - val.length(), false));
            int count = m_FullNominalCounts[i][j];
            int percent = (int)((double)m_FullNominalCounts[i][j] /
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      if (!inatt.isString() && !inatt.isDate()) {
        assertTrue("Attribute names should be changed",
               !inatt.name().equals(outatt.name()));
        if (inatt.isNominal()) {
          assertEquals("Number of nominal values shouldn't change",
                       inatt.numValues(), outatt.numValues());
          for (int j = 0; j < inatt.numValues(); j++) {
            assertTrue("Nominal labels should be changed",
                   !inatt.value(j).equals(outatt.value(j)));
          }
        }
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    // update undo stack
    if (m_bNeedsUndoAction) {
      addUndoAction(new RenameAction(nTargetNode, getNodeName(nTargetNode), sName));
    }
    Attribute att = m_Instances.attribute(nTargetNode);
    int nCardinality = att.numValues();
    FastVector values = new FastVector(nCardinality);
    for (int iValue = 0; iValue < nCardinality; iValue++) {
      values.addElement(att.value(iValue));
    }
    replaceAtt(nTargetNode, sName, values);
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    // update undo stack
    if (m_bNeedsUndoAction) {
      addUndoAction(new RenameValueAction(nTargetNode, sValue, sNewValue));
    }
    Attribute att = m_Instances.attribute(nTargetNode);
    int nCardinality = att.numValues();
    FastVector values = new FastVector(nCardinality);
    for (int iValue = 0; iValue < nCardinality; iValue++) {
      if (att.value(iValue).equals(sValue)) {
        values.addElement(sNewValue);
      } else {
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    // update undo stack
    if (m_bNeedsUndoAction) {
      addUndoAction(new AddValueAction(nTargetNode, sNewValue));
    }
    Attribute att = m_Instances.attribute(nTargetNode);
    int nCardinality = att.numValues();
    FastVector values = new FastVector(nCardinality);
    for (int iValue = 0; iValue < nCardinality; iValue++) {
      values.addElement(att.value(iValue));
    }
    values.addElement(sNewValue);
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    // update undo stack
    if (m_bNeedsUndoAction) {
      addUndoAction(new DelValueAction(nTargetNode, sValue));
    }
    Attribute att = m_Instances.attribute(nTargetNode);
    int nCardinality = att.numValues();
    FastVector values = new FastVector(nCardinality);
    int nValue = -1;
    for (int iValue = 0; iValue < nCardinality; iValue++) {
      if (att.value(iValue).equals(sValue)) {
        nValue = iValue;
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      String remainder = m_classValue.substring(1);
      remainder = remainder.trim();
      if (remainder.equalsIgnoreCase("first")) {
        classValueIndex = 0;
      } else if (remainder.equalsIgnoreCase("last")) {
        classValueIndex = classAtt.numValues() - 1;
      } else {
        // try and parse as a number
        try {
          classValueIndex = Integer.parseInt(remainder);
          classValueIndex--; // 0-based index
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    atts.addElement(new Attribute(prefix + att.name() + "_AVG"));
    atts.addElement(new Attribute(prefix + att.name() + "_STDEV"));
    atts.addElement(new Attribute(prefix + att.name() + "_SUM"));
  }
  else if (att.isNominal()) {
    if (att.numValues() <= m_MaxCardinality) {
      for (m = 0; m < att.numValues(); m++)
        atts.addElement(new Attribute(prefix + att.name() + "_" + att.value(m) + "_CNT"));
    }
    else {
      if (getDebug())
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