org.encog.mathutil.rbf

Class MultiquadricFunction

java.lang.Object

org.encog.mathutil.rbf.BasicRBF

org.encog.mathutil.rbf.MultiquadricFunction

All Implemented Interfaces:

java.io.Serializable, RadialBasisFunction

public class MultiquadricFunction
extends BasicRBF

Multi-dimensional Multiquadric function. Do not use this to implement a 1d function, simply use MultiquadricFunction for that.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MultiquadricFunction(double peak, double[] center, double width) Construct a multi-dimension Multiquadric function with the specified peak, centers and widths.
MultiquadricFunction(double center, double peak, double width) Construct a single-dimension Multiquadric function with the specified peak, centers and widths.
MultiquadricFunction(int dimensions) Create centered at zero, width 0, and peak 0.

Method Summary

Modifier and Type	Method and Description
double	calculate(double[] x) Calculate the RBF result for the specified value.

Methods inherited from class org.encog.mathutil.rbf.BasicRBF

getCenter, getCenters, getDimensions, getPeak, getWidth, setCenters, setPeak, setWidth, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MultiquadricFunction

public MultiquadricFunction(double center,
                            double peak,
                            double width)

Construct a single-dimension Multiquadric function with the specified peak, centers and widths.

Parameters:

peak - The peak for all dimensions.

center - The centers for each dimension.

width - The widths for each dimension.

MultiquadricFunction

public MultiquadricFunction(double peak,
                            double[] center,
                            double width)

Construct a multi-dimension Multiquadric function with the specified peak, centers and widths.

Parameters:

peak - The peak for all dimensions.

center - The centers for each dimension.

width - The widths for each dimension.

MultiquadricFunction

public MultiquadricFunction(int dimensions)

Create centered at zero, width 0, and peak 0.

Parameters:

dimensions - The dimensions.

Method Detail

calculate

public final double calculate(double[] x)

Calculate the RBF result for the specified value.

Parameters:

x - The value to be passed into the RBF.

Returns:

The RBF value.