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java.lang.Objectorg.apache.commons.math.optimization.fitting.GaussianDerivativeFunction
public class GaussianDerivativeFunction
The derivative of GaussianFunction. Specifically:
f'(x) = (-b / (d^2)) * (x - c) * exp(-((x - c)^2) / (2*(d^2)))
Notation key:
| Constructor Summary | |
|---|---|
GaussianDerivativeFunction(double[] parameters)
Constructs an instance with the specified parameters. |
|
GaussianDerivativeFunction(double b,
double c,
double d)
Constructs an instance with the specified parameters. |
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| Method Summary | |
|---|---|
double |
value(double x)
Compute the value for the function. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public GaussianDerivativeFunction(double b,
double c,
double d)
b - b parameter valuec - c parameter valued - d parameter value
IllegalArgumentException - if d is 0public GaussianDerivativeFunction(double[] parameters)
parameters - b, c, and d parameter values
IllegalArgumentException - if parameters is null,
parameters length is not 3, or if
parameters[2] is 0| Method Detail |
|---|
public double value(double x)
value in interface UnivariateRealFunctionx - the point for which the function value should be computed
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