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src
shogun
mathematics
linalg
ratapprox
tracesampler
NormalSampler.cpp
Go to the documentation of this file.
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* Written (W) 2013 Soumyajit De
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*/
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#include <
shogun/lib/common.h
>
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#include <
shogun/lib/SGVector.h
>
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#include <
shogun/mathematics/Random.h
>
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#include <
shogun/mathematics/linalg/ratapprox/tracesampler/NormalSampler.h
>
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namespace
shogun
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{
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CNormalSampler::CNormalSampler
()
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:
CTraceSampler
()
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{
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SG_GCDEBUG
(
"%s created (%p)\n"
, this->
get_name
(),
this
)
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}
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CNormalSampler::CNormalSampler
(
index_t
dimension)
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:
CTraceSampler
(dimension)
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{
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SG_GCDEBUG
(
"%s created (%p)\n"
, this->
get_name
(),
this
)
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}
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CNormalSampler::~CNormalSampler
()
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{
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SG_GCDEBUG
(
"%s destroyed (%p)\n"
, this->
get_name
(),
this
)
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}
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void
CNormalSampler::precompute
()
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{
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m_num_samples
=1;
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}
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SGVector<float64_t>
CNormalSampler::sample
(
index_t
idx)
const
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{
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// ignore idx since it doesnt matter, all samples are independent
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SGVector<float64_t>
s(
m_dimension
);
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for
(
index_t
i=0; i<
m_dimension
; ++i)
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s[i]=
sg_rand
->
std_normal_distrib
();
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return
s;
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}
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}
shogun::CRandom::std_normal_distrib
float64_t std_normal_distrib() const
Definition:
Random.cpp:229
index_t
int32_t index_t
Definition:
common.h:60
shogun::CTraceSampler::m_dimension
index_t m_dimension
Definition:
TraceSampler.h:90
shogun::sg_rand
CRandom * sg_rand
Definition:
init.cpp:29
NormalSampler.h
SG_GCDEBUG
#define SG_GCDEBUG(...)
Definition:
SGIO.h:104
shogun::CTraceSampler::m_num_samples
index_t m_num_samples
Definition:
TraceSampler.h:93
shogun::CNormalSampler::~CNormalSampler
virtual ~CNormalSampler()
Definition:
NormalSampler.cpp:30
shogun::SGVector< float64_t >
shogun::CNormalSampler::CNormalSampler
CNormalSampler()
Definition:
NormalSampler.cpp:18
Random.h
shogun::CNormalSampler::get_name
virtual const char * get_name() const
Definition:
NormalSampler.h:46
shogun::CNormalSampler::precompute
virtual void precompute()
Definition:
NormalSampler.cpp:35
common.h
shogun::CTraceSampler
Abstract template base class that provides an interface for sampling the trace of a linear operator u...
Definition:
TraceSampler.h:23
SGVector.h
shogun::CNormalSampler::sample
virtual SGVector< float64_t > sample(index_t idx) const
Definition:
NormalSampler.cpp:40
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