Src/mlpack/core/data/normalize_labels.hpp -
mlpack
Linear algebra utility functions, generally performed on matrices or vectors. mlpack::data
Functions to load and save matrices.
template<typename eT > void mlpack::data::NormalizeLabels (const arma::Col< eT > &labelsIn, arma::Col< size_t > &labels, arma::Col< eT > &mapping)
Given a set of labels of a particular datatype, convert them to unsigned labels in the range [0, n) where n is the number of different labels. template<typename eT > void mlpack::data::RevertLabels (const arma::Col< size_t > &labels, const arma::Col< eT > &mapping, arma::Col< eT > &labelsOut)
Given a set of labels that have been mapped to the range [0, n), map them back to the original labels given by the 'mapping' vector.
Author:
Ryan Curtin
Often labels are not given as {0, 1, 2, ...} but instead {1, 2, ...} or even {-1, 1} or otherwise. The purpose of this function is to normalize labels to {0, 1, 2, ...} and provide a mapping back to those labels.
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 normalize_labels.hpp.
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