QuantLib
A free/open-source library for quantitative finance
Reference manual - version 1.20
Public Member Functions | Protected Attributes | List of all members
SamplerCauchy Class Reference

Cauchy Sampler. More...

#include <ql/experimental/math/hybridsimulatedannealingfunctors.hpp>

Public Member Functions

 SamplerCauchy (unsigned long seed=SeedGenerator::instance().get())
 
 SamplerCauchy (const SamplerCauchy &sampler)
 
void operator() (Array &newPoint, const Array &currentPoint, const Array &temp) const
 

Protected Attributes

base_generator_type generator_
 
cauchy_random distribution_
 
cauchy_variate cauchy_
 

Detailed Description

Cauchy Sampler.

Sample from cauchy distribution. This means that the parameter space must have support on the positive whole real line. For lower dimensions it could be faster than the Gaussian sampler, specially when combined with the Cauchy temperature.