Mercurial > hg > segmenter-vamp-plugin
diff armadillo-3.900.4/include/armadillo_bits/fn_randn.hpp @ 49:1ec0e2823891
Switch to using subrepo copies of qm-dsp, nnls-chroma, vamp-plugin-sdk; update Armadillo version; assume build without external BLAS/LAPACK
author | Chris Cannam |
---|---|
date | Thu, 13 Jun 2013 10:25:24 +0100 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/armadillo-3.900.4/include/armadillo_bits/fn_randn.hpp Thu Jun 13 10:25:24 2013 +0100 @@ -0,0 +1,123 @@ +// Copyright (C) 2008-2012 NICTA (www.nicta.com.au) +// Copyright (C) 2008-2012 Conrad Sanderson +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + + +//! \addtogroup fn_randn +//! @{ + + +inline +double +randn() + { + return double(eop_aux_randn<double>()); + } + + +template<typename eT> +inline +typename arma_scalar_only<eT>::result +randn() + { + return eT(eop_aux_randn<eT>()); + } + + + +//! Generate a vector with all elements set to random values with a gaussian distribution (zero mean, unit variance) +arma_inline +const Gen<vec, gen_randn> +randn(const uword n_elem) + { + arma_extra_debug_sigprint(); + + return Gen<vec, gen_randn>(n_elem, 1); + } + + + +template<typename obj_type> +arma_inline +const Gen<obj_type, gen_randn> +randn(const uword n_elem, const arma_empty_class junk1 = arma_empty_class(), const typename arma_Mat_Col_Row_only<obj_type>::result* junk2 = 0) + { + arma_extra_debug_sigprint(); + arma_ignore(junk1); + arma_ignore(junk2); + + if(is_Row<obj_type>::value == true) + { + return Gen<obj_type, gen_randn>(1, n_elem); + } + else + { + return Gen<obj_type, gen_randn>(n_elem, 1); + } + } + + + +//! Generate a dense matrix with all elements set to random values with a gaussian distribution (zero mean, unit variance) +arma_inline +const Gen<mat, gen_randn> +randn(const uword n_rows, const uword n_cols) + { + arma_extra_debug_sigprint(); + + return Gen<mat, gen_randn>(n_rows, n_cols); + } + + + +template<typename obj_type> +arma_inline +const Gen<obj_type, gen_randn> +randn(const uword n_rows, const uword n_cols, const typename arma_Mat_Col_Row_only<obj_type>::result* junk = 0) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + if(is_Col<obj_type>::value == true) + { + arma_debug_check( (n_cols != 1), "randn(): incompatible size" ); + } + else + if(is_Row<obj_type>::value == true) + { + arma_debug_check( (n_rows != 1), "randn(): incompatible size" ); + } + + return Gen<obj_type, gen_randn>(n_rows, n_cols); + } + + + +arma_inline +const GenCube<cube::elem_type, gen_randn> +randn(const uword n_rows, const uword n_cols, const uword n_slices) + { + arma_extra_debug_sigprint(); + + return GenCube<cube::elem_type, gen_randn>(n_rows, n_cols, n_slices); + } + + + +template<typename cube_type> +arma_inline +const GenCube<typename cube_type::elem_type, gen_randn> +randn(const uword n_rows, const uword n_cols, const uword n_slices, const typename arma_Cube_only<cube_type>::result* junk = 0) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + return GenCube<typename cube_type::elem_type, gen_randn>(n_rows, n_cols, n_slices); + } + + + +//! @}