/usr/include/shark/Data/Statistics.h is in libshark-dev 3.0.1+ds1-2ubuntu1.
This file is owned by root:root, with mode 0o644.
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/*!
*
*
* \brief some functions for vector valued statistics like mean, variance and covariance
*
*
*
* \author O.Krause, C. Igel
* \date 2010-2013
*
*
* \par Copyright 1995-2015 Shark Development Team
*
* <BR><HR>
* This file is part of Shark.
* <http://image.diku.dk/shark/>
*
* Shark is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Shark is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Shark. If not, see <http://www.gnu.org/licenses/>.
*
*/
//===========================================================================
#ifndef SHARK_DATA_STATISTICS_H
#define SHARK_DATA_STATISTICS_H
#include <shark/Data/Dataset.h>
/**
* \ingroup shark_globals
*
* @{
*/
namespace shark{
//! Calculates the mean and variance values of the input data
template<class Vec1T,class Vec2T,class Vec3T>
void meanvar
(
const Data<Vec1T>& data,
blas::vector_container<Vec2T>& mean,
blas::vector_container<Vec3T>& variance
);
//! Calculates the mean, variance and covariance values of the input data
template<class Vec1T,class Vec2T,class MatT>
void meanvar
(
const Data<Vec1T>& data,
blas::vector_container<Vec2T>& mean,
blas::matrix_container<MatT>& variance
);
//! Calculates the mean vector of the input vectors.
template<class VectorType>
VectorType mean(Data<VectorType> const& data);
template<class VectorType>
VectorType mean(UnlabeledData<VectorType> const& data){
return mean(static_cast<Data<VectorType> const&>(data));
}
//! Calculates the variance vector of the input vectors
template<class VectorType>
VectorType variance(const Data<VectorType>& data);
//! Calculates the covariance matrix of the data vectors
template<class VectorType>
typename VectorMatrixTraits<VectorType>::DenseMatrixType covariance(const Data<VectorType>& data);
}
/** @}*/
#include "Impl/Statistics.inl"
#endif
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