How to use

setNoReplacement

method

in

weka.filters.unsupervised.instance.Resample

setNoReplacement(Utils.getFlag("no-replacement", options));

setNoReplacement(Utils.getFlag("no-replacement", options));

public void testSampleSizePercentNoReplacement() {
 ((Resample) m_Filter).setSampleSizePercent(20);
 ((Resample) m_Filter).setNoReplacement(true);
 Instances result = useFilter();
 assertEquals(m_Instances.numAttributes(), result.numAttributes());
 assertEquals("Expecting output to be 20% of input",
        (int) (m_Instances.numInstances() * 20.0 / 100),  result.numInstances());
}

public void testSampleSizePercentNoReplacement() {
 ((Resample) m_Filter).setSampleSizePercent(20);
 ((Resample) m_Filter).setNoReplacement(true);
 Instances result = useFilter();
 assertEquals(m_Instances.numAttributes(), result.numAttributes());
 assertEquals("Expecting output to be 20% of input",
        (int) (m_Instances.numInstances() * 20.0 / 100),  result.numInstances());
}

public void testSampleSizePercentNoReplacementInverted() {
 ((Resample) m_Filter).setSampleSizePercent(20);
 ((Resample) m_Filter).setNoReplacement(true);
 ((Resample) m_Filter).setInvertSelection(true);
 Instances result = useFilter();
 assertEquals(m_Instances.numAttributes(), result.numAttributes());
 assertEquals("Expecting output to be 80% of input (20% inverted)",
        m_Instances.numInstances() 
        - (int) (m_Instances.numInstances() * 20.0 / 100),  result.numInstances());
}

public void testSampleSizePercentNoReplacementInverted() {
 ((Resample) m_Filter).setSampleSizePercent(20);
 ((Resample) m_Filter).setNoReplacement(true);
 ((Resample) m_Filter).setInvertSelection(true);
 Instances result = useFilter();
 assertEquals(m_Instances.numAttributes(), result.numAttributes());
 assertEquals("Expecting output to be 80% of input (20% inverted)",
        m_Instances.numInstances() 
        - (int) (m_Instances.numInstances() * 20.0 / 100),  result.numInstances());
}