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## weka.estimators
Class KernelEstimator

    java.lang.Object
      weka.estimators.KernelEstimator

All Implemented Interfaces:
  java.io.Serializable, Estimator

    public class KernelEstimator

extends java.lang.Object
implements Estimator

Simple kernel density estimator. Uses one gaussian kernel per observed data value.

Version:
  $Revision: 1.5 $
Author:
  Len Trigg (trigg@cs.waikato.ac.nz)
See Also:
  Serialized Form

Constructor Summary
`KernelEstimator(double precision)` Constructor that takes a precision argument.

Method Summary
`void` | `addValue(double data, double weight)` Add a new data value to the current estimator.
`double` | `getProbability(double data)` Get a probability estimate for a value.
`static void` | `main(java.lang.String[] argv)` Main method for testing this class.
`java.lang.String` | `toString()` Display a representation of this estimator

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### KernelEstimator

    public KernelEstimator(double precision)

  Constructor that takes a precision argument.

  Parameters:
    `precision` - the precision to which numeric values are given. For example, if the precision is stated to be 0.1, the values in the interval (0.25,0.35] are all treated as 0.3.

Method Detail

### addValue

    public void addValue(double data,
                         double weight)

  Add a new data value to the current estimator.

  Specified by:
    `addValue` in interface `Estimator`
  Parameters:
    `data` - the new data value
    `weight` - the weight assigned to the data value

### getProbability

    public double getProbability(double data)

  Get a probability estimate for a value.

  Specified by:
    `getProbability` in interface `Estimator`
  Parameters:
    `data` - the value to estimate the probability of
  Returns:
    the estimated probability of the supplied value

### toString

    public java.lang.String toString()

  Display a representation of this estimator

  Overrides:
    `toString` in class `java.lang.Object`

### main

    public static void main(java.lang.String[] argv)

  Main method for testing this class.

  Parameters:
    `argv` - should contain a sequence of numeric values

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