Example usage for weka.filters.unsupervised.attribute AddValues setSort

Introduction

In this page you can find the example usage for weka.filters.unsupervised.attribute AddValues setSort.

Prototype

public void setSort(boolean value) 

Source Link

Document

Sets whether the labels are sorted.

Usage

From source file:wekimini.DataManager.java

private void updateInstancesForNewHigherMaxClass(int index, int newNumClasses) {
    //Change allInstances, dummyInstances
    // dummyInstances.attribute(numMetaData + numInputs + index).
    AddValues a = new AddValues();
    int oldMaxClasses = numClasses[index];
    StringBuilder sb = new StringBuilder();
    for (int i = oldMaxClasses + 1; i < newNumClasses; i++) {
        sb.append(Integer.toString(i)).append(",");
    }//from www  .j  av  a  2s  . c om
    sb.append(Integer.toString(newNumClasses));

    Instances newAll;
    try {
        a.setAttributeIndex(Integer.toString(numMetaData + numInputs + index + 1)); //Weka indexing stupidity
        a.setLabels(sb.toString());
        a.setSort(false);
        a.setInputFormat(allInstances);
        newAll = Filter.useFilter(allInstances, a);
    } catch (Exception ex) {
        Logger.getLogger(DataManager.class.getName()).log(Level.SEVERE, null, ex);
        return;
    }
    if (newAll.numInstances() != allInstances.numInstances()) {
        logger.log(Level.SEVERE, "Problem: deleted instances when removing class attribute");
    }
    allInstances = newAll;

    Instances newD;
    try {
        newD = Filter.useFilter(dummyInstances, a);
    } catch (Exception ex) {
        Logger.getLogger(DataManager.class.getName()).log(Level.SEVERE, null, ex);
        return;
    }

    dummyInstances = newD;
}

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