org.apache.commons.math3.analysis.function
Class Logit.Parametric
java.lang.Object
org.apache.commons.math3.analysis.function.Logit.Parametric
- All Implemented Interfaces:
- ParametricUnivariateFunction
- Enclosing class:
- Logit
public static class Logit.Parametric
- extends Object
- implements ParametricUnivariateFunction
Parametric function where the input array contains the parameters of
the logit function, ordered as follows:
|
Method Summary |
double[] |
gradient(double x,
double... param)
Computes the value of the gradient at x. |
double |
value(double x,
double... param)
Computes the value of the logit at x. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Logit.Parametric
public Logit.Parametric()
value
public double value(double x,
double... param)
throws NullArgumentException,
DimensionMismatchException
- Computes the value of the logit at
x.
- Specified by:
value in interface ParametricUnivariateFunction
- Parameters:
x - Value for which the function must be computed.param - Values of lower bound and higher bounds.
- Returns:
- the value of the function.
- Throws:
NullArgumentException - if param is null.
DimensionMismatchException - if the size of param is
not 2.
gradient
public double[] gradient(double x,
double... param)
throws NullArgumentException,
DimensionMismatchException
- Computes the value of the gradient at
x.
The components of the gradient vector are the partial
derivatives of the function with respect to each of the
parameters (lower bound and higher bound).
- Specified by:
gradient in interface ParametricUnivariateFunction
- Parameters:
x - Value at which the gradient must be computed.param - Values for lower and higher bounds.
- Returns:
- the gradient vector at
x.
- Throws:
NullArgumentException - if param is null.
DimensionMismatchException - if the size of param is
not 2.
Copyright © 2003-2013 The Apache Software Foundation. All Rights Reserved.