bpp-core  2.2.0
ExponentialDiscreteDistribution.cpp
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1 //
2 // File: ExponentialDiscreteDistribution.cpp
3 // Created by: Julien Dutheil
4 // Created on: Tue Nov 13 12:37 2007
5 //
6 
7 /*
8  Copyright or © or Copr. Bio++ Development Team, (November 17, 2004)
9 
10  This software is a computer program whose purpose is to provide classes
11  for numerical calculus.
12 
13  This software is governed by the CeCILL license under French law and
14  abiding by the rules of distribution of free software. You can use,
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17  "http://www.cecill.info".
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38  */
39 
41 #include "../Random/RandomTools.h"
42 #include "../NumConstants.h"
43 #include "../../Utils/MapTools.h"
44 
45 using namespace bpp;
46 
47 // From the STL:
48 #include <cmath>
49 using namespace std;
50 
51 /****************************************************************/
52 
54  AbstractParameterAliasable("Exponential."),
55  AbstractDiscreteDistribution(n, "Exponential."),
56  lambda_(lambda)
57 {
58  addParameter_(new Parameter("Exponential.lambda", lambda, &Parameter::R_PLUS));
59 
60  intMinMax_.setLowerBound(0, true);
61  discretize();
62 }
63 
64 /******************************************************************************/
65 
67 {
69  lambda_ = getParameterValue("lambda");
70  discretize();
71 }
72 
73 
74 
void fireParameterChanged(const ParameterList &parameters)
Notify the class when one or several parameters have changed.
Partial implementation of the DiscreteDistribution interface.
This class allows to perform a correspondence analysis.
void setLowerBound(double lowerBound, bool strict)
Definition: Constraints.h:210
STL namespace.
This class is designed to facilitate the manipulation of parameters.
Definition: Parameter.h:135
void addParameter_(Parameter *parameter)
The parameter list object.
Definition: ParameterList.h:61
void fireParameterChanged(const ParameterList &parameters)
Notify the class when one or several parameters have changed.
A partial implementation of the Parametrizable interface.
virtual void discretize()
Discretizes the distribution in equiprobable classes.
static const IntervalConstraint R_PLUS
Definition: Parameter.h:332
IntervalConstraint intMinMax_
the interval where the distribution is defined/restricted.
ExponentialDiscreteDistribution(size_t n, double lambda=1.)
Build a new discretized exponential distribution.
double getParameterValue(const std::string &name) const
Get the value for parameter of name &#39;name&#39;.