org.apache.commons.math.stat.descriptive
Interface UnivariateStatistic

All Known Subinterfaces:
StorelessUnivariateStatistic
All Known Implementing Classes:
AbstractStorelessUnivariateStatistic, AbstractUnivariateStatistic

public interface UnivariateStatistic

Base evaluation interface implemented by all statistics.

Includes "stateless" evaluate methods that take double[] arrays as input and return the value of the statistic applied to the input values.

Version:
$Revision: 1.1 $ $Date: 2004/10/08 05:08:17 $

Method Summary
 double evaluate(double[] values)
          Returns the result of evaluating the statistic over the input array.
 double evaluate(double[] values, int begin, int length)
          Returns the result of evaluating the statistic over the specified entries in the input array.
 

Method Detail

evaluate

public double evaluate(double[] values)
Returns the result of evaluating the statistic over the input array.

Parameters:
values - input array
Returns:
the value of the statistic applied to the input array

evaluate

public double evaluate(double[] values,
                       int begin,
                       int length)
Returns the result of evaluating the statistic over the specified entries in the input array.

Parameters:
values - the input array
begin - the index of the first element to include
length - the number of elements to include
Returns:
the value of the statistic applied to the included array entries