NAME¶

src/mlpack/core/math/lin_alg.hpp -

SYNOPSIS¶

Namespaces¶

mlpack Linear algebra utility functions, generally performed on matrices or vectors. mlpack::math Miscellaneous math routines.

Functions¶

void mlpack::math::Center (const arma::mat &x, arma::mat &xCentered) Creates a centered matrix, where centering is done by subtracting the sum over the columns (a column vector) from each column of the matrix. void mlpack::math::Orthogonalize (const arma::mat &x, arma::mat &W) Orthogonalize x and return the result in W, using eigendecomposition. void mlpack::math::Orthogonalize (arma::mat &x) Orthogonalize x in-place. void mlpack::math::RandVector (arma::vec &v) Overwrites a dimension-N vector to a random vector on the unit sphere in R^N. void mlpack::math::RemoveRows (const arma::mat &input, const std::vector< size_t > &rowsToRemove, arma::mat &output) Remove a certain set of rows in a matrix while copying to a second matrix. void mlpack::math::VectorPower (arma::vec &vec, const double power) Auxiliary function to raise vector elements to a specific power. void mlpack::math::WhitenUsingEig (const arma::mat &x, arma::mat &xWhitened, arma::mat &whiteningMatrix) Whitens a matrix using the eigendecomposition of the covariance matrix. void mlpack::math::WhitenUsingSVD (const arma::mat &x, arma::mat &xWhitened, arma::mat &whiteningMatrix) Whitens a matrix using the singular value decomposition of the covariance matrix.

Detailed Description¶

Author: Linear algebra utilities. This file is part of MLPACK 1.0.10. 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 lin_alg.hpp.

Author¶

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