ca.nengo.math

Interface ApproximatorFactory

All Superinterfaces:

java.lang.Cloneable, java.io.Serializable

All Known Implementing Classes:

GradientDescentApproximator.Factory, IndependentDimensionApproximator.Factory, WeightedCostApproximator.Factory

public interface ApproximatorFactory
extends java.io.Serializable, java.lang.Cloneable

Produces LinearApproximators, which approximate Functions through a weighted sum of component functions. The component functions are given as lists of evaluation points and corresponding values.

Method Summary

Methods

Modifier and Type	Method and Description
ApproximatorFactory	clone()
LinearApproximator	getApproximator(float[][] evalPoints, float[][] values)

Method Detail

getApproximator

LinearApproximator getApproximator(float[][] evalPoints,
                                 float[][] values)

Parameters:

evalPoints - Points at which component functions are evaluated. These should usually be uniformly distributed, because the sum of error at these points is treated as an integral over the domain of interest.

values - The values of component functions at the evalPoints. The first dimension makes up the list of functions, and the second the values of these functions at each evaluation point.

Returns:

A LinearApproximator that can be used to approximate new Functions as a wieghted sum of the given components.

clone

ApproximatorFactory clone()
                          throws java.lang.CloneNotSupportedException

Returns:

Valid clone

Throws:

java.lang.CloneNotSupportedException - if clone can't be made