Examples of weka.core.Capabilities

weka.core.Capabilities
the classifier handle the data? getCapabilities().testWithFail(instances); ... // possible deletion of instances with missing class labels, etc. For only testing a single attribute, use this:
```
 ... Attribute att = instances.attribute(0); getCapabilities().testWithFail(att); ... 
```
Or for testing the class attribute (uses the capabilities that are especially for the class):
```
 ... Attribute att = instances.classAttribute(); getCapabilities().testWithFail(att, true); ... 
```
@author FracPete (fracpete at waikato dot ac dot nz) @version $Revision: 7082 $

   * Returns default capabilities of the classifier.
   *
   * @return      the capabilities of this classifier
   */
  public Capabilities getCapabilities() {
    Capabilities result = super.getCapabilities();
    result.disableAll();


    // attributes
    result.enable(Capability.NOMINAL_ATTRIBUTES);
    result.enable(Capability.NUMERIC_ATTRIBUTES);
    result.enable(Capability.DATE_ATTRIBUTES);
    result.enable(Capability.MISSING_VALUES);


    // class
    result.enable(Capability.NUMERIC_CLASS);
    result.enable(Capability.DATE_CLASS);
    result.enable(Capability.MISSING_CLASS_VALUES);
    
    return result;
  }

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   * 
   * @return the capabilities of this object
   * @see Capabilities
   */
  public Capabilities getCapabilities() {
    Capabilities result = super.getCapabilities();


    // attributes
    result.enableAllAttributes();
    result.enable(Capability.MISSING_VALUES);


    // class
    result.enable(Capability.NOMINAL_CLASS);
    result.enable(Capability.NO_CLASS);
    result.enableAllClasses();


    // result.or(new LinearRegression().getCapabilities());


    return result;
  }

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  public static class TertiusT extends Tertius implements Serializable {
    
    private static final long serialVersionUID = -5252868975496746622L;


    public Capabilities getCapabilities() {
      Capabilities result = super.getCapabilities();
      result.disableAll();


      // attributes
      result.enable(Capability.NOMINAL_ATTRIBUTES);
      result.enable(Capability.MISSING_VALUES);


      // class
      result.enable(Capability.NOMINAL_CLASS);
      result.enable(Capability.MISSING_CLASS_VALUES);


      return result;
    }

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   *
   * @return            the capabilities of this object
   * @see               Capabilities
   */
  public Capabilities getCapabilities() {
    Capabilities result = new Capabilities(this);
    result.enableAll();
    
    return result;
  }

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   *
   * @return            the capabilities of this object
   * @see               Capabilities
   */
  public Capabilities getCapabilities() {
    Capabilities result = super.getCapabilities();
    result.disableAll();
    
    result.enable(Capability.NUMERIC_ATTRIBUTES);
    result.enableAllClasses();
    result.enable(Capability.MISSING_CLASS_VALUES);
    
    return result;
  }

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    implements Serializable {
        
    private static final long serialVersionUID = 7236786154698908772L;


    public Capabilities getCapabilities() {
      Capabilities result = super.getCapabilities();
      result.disableAll();


      // attributes
      result.enable(Capability.NOMINAL_ATTRIBUTES);
      result.enable(Capability.MISSING_VALUES);


      // class
      result.enable(Capability.NOMINAL_CLASS);
      result.enable(Capability.MISSING_CLASS_VALUES);
      
      return result;
    }

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   * Returns default capabilities of the classifier.
   *
   * @return      the capabilities of this classifier
   */
  public Capabilities getCapabilities() {
    Capabilities result = super.getCapabilities();
    result.disableAll();


    // attributes
    result.enable(Capability.NOMINAL_ATTRIBUTES);
    result.enable(Capability.NUMERIC_ATTRIBUTES);
    result.enable(Capability.DATE_ATTRIBUTES);
    result.enable(Capability.MISSING_VALUES);


    // class
    result.enable(Capability.NUMERIC_CLASS);
    result.enable(Capability.DATE_CLASS);
    result.enable(Capability.MISSING_CLASS_VALUES);
    
    return result;
  }

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   * Returns default capabilities of the classifier.
   *
   * @return      the capabilities of this classifier
   */
  public Capabilities getCapabilities() {
    Capabilities result = super.getCapabilities();
    result.disableAll();


    // attributes
    result.enable(Capability.BINARY_ATTRIBUTES);
    result.enable(Capability.NUMERIC_ATTRIBUTES);


    // class
    result.enable(Capability.NUMERIC_CLASS);
    result.enable(Capability.DATE_CLASS);
    result.enable(Capability.MISSING_CLASS_VALUES);
    
    return result;
  }

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   * @throws Exception if the classifier could not be built successfully
   */
  public void buildClassifier(Instances data) throws Exception {


    // can classifier handle the data?
    Capabilities cap = getCapabilities();
    cap.setMinimumNumberInstances(20 + data.numAttributes());
    cap.testWithFail(data);


    // remove instances with missing class
    data = new Instances(data);
    data.deleteWithMissingClass();

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   * Returns default capabilities of the classifier.
   *
   * @return      the capabilities of this classifier
   */
  public Capabilities getCapabilities() {
    Capabilities result = super.getCapabilities();
    result.disableAll();


    // attributes
    result.enable(Capability.NUMERIC_ATTRIBUTES);
    result.enable(Capability.DATE_ATTRIBUTES);


    // class
    result.enable(Capability.NUMERIC_CLASS);
    result.enable(Capability.DATE_CLASS);
    result.enable(Capability.MISSING_CLASS_VALUES);
    
    return result;
  }

View Full Code Here

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