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java.lang.Objectorg.apache.commons.math.optimization.fitting.GaussianFunction
public class GaussianFunction
A Gaussian function. Specifically:
f(x) = a + b*exp(-((x - c)^2 / (2*d^2)))
Notation key:
GaussianDerivativeFunction,
ParametricGaussianFunction,
Serialized Form| Constructor Summary | |
|---|---|
GaussianFunction(double[] parameters)
Constructs an instance with the specified parameters. |
|
GaussianFunction(double a,
double b,
double c,
double d)
Constructs an instance with the specified parameters. |
|
| Method Summary | |
|---|---|
UnivariateRealFunction |
derivative()
Returns the derivative of the function |
double |
getA()
Gets a parameter value. |
double |
getB()
Gets b parameter value. |
double |
getC()
Gets c parameter value. |
double |
getD()
Gets d parameter value. |
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 GaussianFunction(double a,
double b,
double c,
double d)
a - a parameter valueb - b parameter valuec - c parameter valued - d parameter value
IllegalArgumentException - if d is 0public GaussianFunction(double[] parameters)
parameters - a, b, c, and d
parameter values
IllegalArgumentException - if parameters is null,
parameters length is not 4, or if
parameters[3] is 0| Method Detail |
|---|
public UnivariateRealFunction derivative()
derivative in interface DifferentiableUnivariateRealFunctionpublic double value(double x)
value in interface UnivariateRealFunctionx - the point for which the function value should be computed
public double getA()
public double getB()
public double getC()
public double getD()
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