aGrUM
3.2.0
a C++ library for (probabilistic) graphical models
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chi2.h
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/****************************************************************************
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* This file is part of the aGrUM/pyAgrum library. *
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* *
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* Copyright (c) 2005-2026 by *
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* - Pierre-Henri WUILLEMIN(_at_LIP6) *
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* - Christophe GONZALES(_at_AMU) *
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* *
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* The aGrUM/pyAgrum library is free software; you can redistribute it *
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* and/or modify it under the terms of either : *
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* *
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* - the GNU Lesser General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, *
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* or (at your option) any later version, *
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* - the MIT license (MIT), *
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* - or both in dual license, as here. *
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* *
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* (see https://agrum.gitlab.io/articles/dual-licenses-lgplv3mit.html) *
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* *
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* This aGrUM/pyAgrum library is distributed in the hope that it will be *
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* useful, but WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES MERCHANTABILITY or FITNESS *
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, *
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* OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* See LICENCES for more details. *
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* *
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* SPDX-FileCopyrightText: Copyright 2005-2026 *
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* - Pierre-Henri WUILLEMIN(_at_LIP6) *
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* - Christophe GONZALES(_at_AMU) *
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* SPDX-License-Identifier: LGPL-3.0-or-later OR MIT *
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* *
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* Contact : info_at_agrum_dot_org *
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* homepage : http://agrum.gitlab.io *
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* gitlab : https://gitlab.com/agrumery/agrum *
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* *
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****************************************************************************/
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#ifndef GUM_LEARNING_CHI2_H
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#define GUM_LEARNING_CHI2_H
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#include <
agrum/agrum.h
>
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#include <
agrum/base/core/math/math_utils.h
>
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#define GUM_LEARNING_CONFIDENCE_PROBA 0.05
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namespace
gum
{
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// =========================================================================
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// === CHI2 CLASS ===
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// =========================================================================
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class
GUM_SHARED_PUBLIC
Chi2
{
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public
:
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// ==========================================================================
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// ==========================================================================
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static
double
probaChi2
(
double
x,
Size
df);
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static
double
criticalValue
(
double
proba,
Size
df);
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private
:
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Chi2
() =
delete
;
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static
double
_probaZValue_
(
double
z);
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};
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}
/* namespace gum */
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#endif
/* GUM_LEARNING_CHI2_H */
agrum.h
gum::Chi2::Chi2
Chi2()=delete
gum::Chi2::criticalValue
static double criticalValue(double proba, Size df)
Computes the critical chi2 value for a given confidence probability and number of degrees of freedom.
Definition
chi2.cpp:173
gum::Chi2::_probaZValue_
static double _probaZValue_(double z)
Computes the probability of normal z value.
Definition
chi2.cpp:72
gum::Chi2::probaChi2
static double probaChi2(double x, Size df)
Computes the probability of chi2 value.
Definition
chi2.cpp:127
gum::Size
std::size_t Size
In aGrUM, hashed values are unsigned long int.
Definition
types.h:74
math_utils.h
Useful macros for maths.
gum
gum is the global namespace for all aGrUM entities
Definition
agrum.h:46
aGrUM
3.2.0
© PHW&CG&others - 2022
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