Package weka.gui.boundaryvisualizer

Interface DataGenerator

  • All Known Implementing Classes:
    KDDataGenerator
    public interface DataGenerator
    Interface to something that can generate new instances based on a set of input instances
    Since:
    1.0
    Version:
    $Revision: 1.4 $
    Author:
    Mark Hall

    • Method Detail

      • buildGenerator

        void buildGenerator​(Instances inputInstances)
             throws java.lang.Exception
        Build the data generator
        Parameters:
        inputInstances - Instances to build the generator from
        Throws:
        java.lang.Exception - if an error occurs

      • generateInstances

        double[][] generateInstances​(int[] indices)
                      throws java.lang.Exception
        Generate an instance. Should return a new Instance object
        Returns:
        an Instance value
        Throws:
        java.lang.Exception - if an error occurs

      • getWeights

        double[] getWeights()
             throws java.lang.Exception
        Get weights
        Throws:
        java.lang.Exception

      • setWeightingDimensions

        void setWeightingDimensions​(boolean[] dimensions)
        Set the dimensions to be used in computing a weight for each instance generated
        Parameters:
        dimensions - an array of booleans specifying the dimensions to be used when computing instance weights

      • setWeightingValues

        void setWeightingValues​(double[] vals)
        Set the values of the dimensions (chosen via setWeightingDimensions) to be used when computing instance weights
        Parameters:
        vals - a double[] value

      • getNumGeneratingModels

        int getNumGeneratingModels()
        Returns the number of generating models used by this DataGenerator
        Returns:
        an int value

      • setSeed

        void setSeed​(int seed)
        Set a seed for random number generation (if needed).
        Parameters:
        seed - an int value