/usr/include/trilinos/ROL_Dirac.hpp is in libtrilinos-rol-dev 12.10.1-3.
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// ************************************************************************
//
// Rapid Optimization Library (ROL) Package
// Copyright (2014) Sandia Corporation
//
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// @HEADER
#ifndef ROL_DIRAC_HPP
#define ROL_DIRAC_HPP
#include "ROL_Distribution.hpp"
#include "Teuchos_ParameterList.hpp"
namespace ROL {
template<class Real>
class Dirac : public Distribution<Real> {
private:
Real data_;
public:
Dirac(const Real data = 0.) : data_(data) {}
Dirac(Teuchos::ParameterList &parlist) {
data_ = parlist.sublist("SOL").sublist("Distribution").sublist("Dirac").get("Location",0.);
}
Real evaluatePDF(const Real input) const {
return ((input==data_) ? 1.0 : 0.0);
}
Real evaluateCDF(const Real input) const {
return ((input >= data_) ? 1.0 : 0.0);
}
Real integrateCDF(const Real input) const {
return ((input < data_) ? 0.0 : input);
}
Real invertCDF(const Real input) const {
return data_;
}
Real moment(const size_t m) const {
if (m==1) {
return data_;
}
return std::pow(data_,(Real)m);
}
Real lowerBound(void) const {
return data_;
}
Real upperBound(void) const {
return data_;
}
void test(std::ostream &outStream = std::cout ) const {
size_t size = 0;
std::vector<Real> X(size,4.*(Real)rand()/(Real)RAND_MAX - 2.);
std::vector<int> T(size,0);
Distribution<Real>::test(X,T,outStream);
}
};
}
#endif
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