phi.hpp File Reference

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Namespaces

namespace  mlpack
 

Linear algebra utility functions, generally performed on matrices or vectors.


namespace  mlpack::gmm
 

Gaussian Mixture Models.


Functions

void mlpack::gmm::phi (const arma::mat &x, const arma::vec &mean, const arma::mat &cov, arma::vec &probabilities)
 Calculates the multivariate Gaussian probability density function for each data point (column) in the given matrix, with respect to the given mean and variance.
double mlpack::gmm::phi (const arma::vec &x, const arma::vec &mean, const arma::mat &cov, const std::vector< arma::mat > &d_cov, arma::vec &g_mean, arma::vec &g_cov)
 Calculates the multivariate Gaussian probability density function and also the gradients with respect to the mean and the variance.
double mlpack::gmm::phi (const arma::vec &x, const arma::vec &mean, const arma::mat &cov)
 Calculates the multivariate Gaussian probability density function.
double mlpack::gmm::phi (const double x, const double mean, const double var)
 Calculates the univariate Gaussian probability density function.

Detailed Description

Author:
Parikshit Ram (pram@cc.gatech.edu)

This file computes the Gaussian probability density function

This file is part of MLPACK 1.0.8.

MLPACK 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.

MLPACK 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 (LICENSE.txt).

You should have received a copy of the GNU General Public License along with MLPACK. If not, see <http://www.gnu.org/licenses/>.

Definition in file phi.hpp.


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