Package weka.associations

Class FPGrowth.BinaryItem

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<FPGrowth.BinaryItem>
    Enclosing class:
    FPGrowth
    public static class FPGrowth.BinaryItem
extends java.lang.Object
implements java.io.Serializable, java.lang.Comparable<FPGrowth.BinaryItem>
    Inner class that handles a single binary item
    See Also:
    Serialized Form

    • Constructor Detail

      • BinaryItem

        public BinaryItem​(Attribute att,
                  int valueIndex)
           throws java.lang.Exception
        Throws:
        java.lang.Exception

    • Method Detail

      • increaseFrequency

        public void increaseFrequency​(int f)
        Increase the frequency of this item.
        Parameters:
        f - the amount to increase the frequency by.

      • decreaseFrequency

        public void decreaseFrequency​(int f)
        Decrease the frequency of this item.
        Parameters:
        f - the amount by which to decrease the frequency.

      • increaseFrequency

        public void increaseFrequency()
        Increment the frequency of this item.

      • decreaseFrequency

        public void decreaseFrequency()
        Decrement the frequency of this item.

      • getFrequency

        public int getFrequency()
        Get the frequency of this item.
        Returns:
        the frequency.

      • getAttribute

        public Attribute getAttribute()
        Get the attribute that this item corresponds to.
        Returns:
        the corresponding attribute.

      • getValueIndex

        public int getValueIndex()
        Get the value index for this item.
        Returns:
        the value index.

      • toString

        public java.lang.String toString()
        A string representation of this item.
        Overrides:
        toString in class java.lang.Object
        Returns:
        a string representation of this item.

      • toString

        public java.lang.String toString​(boolean freq)
        A string representation of this item.
        Parameters:
        freq - true if the frequency should be included.
        Returns:
        a string representation of this item.

      • toXML

        public java.lang.String toXML()

      • compareTo

        public int compareTo​(FPGrowth.BinaryItem comp)
        Ensures that items will be sorted in descending order of frequency. Ties are ordered by attribute name.
        Specified by:
        compareTo in interface java.lang.Comparable<FPGrowth.BinaryItem>
        Parameters:
        comp - the BinaryItem to compare against.

      • equals

        public boolean equals​(java.lang.Object compareTo)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object