Example usage for weka.classifiers.meta Stacking buildClassifier

Introduction

In this page you can find the example usage for weka.classifiers.meta Stacking buildClassifier.

Prototype

public void buildClassifier(Instances data) throws Exception 

Source Link

Document

Builds a classifier using stacking.

Usage

From source file:de.uniheidelberg.cl.swp.mlprocess.WEKARunner.java

License:Apache License

/**
 * Internal construction of the stacking classifier and its level 1 and level 0 algorithms.
 * //www  . java 2s .co  m
 * @param type A meta machine learning algorithm for level 1.
 * @param subtypes Multiple machine learning algorithms for level 0.
 * @param options Options for the classifiers.
 * @return The stacking classifier.
 */
private Stacking createStack(String type, String[] subtypes, String options) throws Exception {
    StringBuffer sb = new StringBuffer();
    Stacking stack = new Stacking();

    sb.append("-M " + getClass(Type.valueOf(type.toUpperCase())));

    for (String s : subtypes) {
        sb.append(" -B " + getClass(Type.valueOf(s.toUpperCase())));
    }
    sb.append(" " + options);

    Logging.getInstance().getLogger()
            .info("Building " + subtypes.length + " subclassifiers... this might take some time");
    stack.setOptions(Utils.splitOptions(sb.toString()));
    stack.buildClassifier(train);

    return stack;
}

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