From eda5bc26f44ee9a6f83dcf8c91f17296d7fc509d Mon Sep 17 00:00:00 2001 From: Nao Pross Date: Mon, 12 Feb 2024 14:52:43 +0100 Subject: Move into version control --- src/armadillo/include/armadillo_bits/fn_randu.hpp | 357 ++++++++++++++++++++++ 1 file changed, 357 insertions(+) create mode 100644 src/armadillo/include/armadillo_bits/fn_randu.hpp (limited to 'src/armadillo/include/armadillo_bits/fn_randu.hpp') diff --git a/src/armadillo/include/armadillo_bits/fn_randu.hpp b/src/armadillo/include/armadillo_bits/fn_randu.hpp new file mode 100644 index 0000000..432c171 --- /dev/null +++ b/src/armadillo/include/armadillo_bits/fn_randu.hpp @@ -0,0 +1,357 @@ +// SPDX-License-Identifier: Apache-2.0 +// +// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au) +// Copyright 2008-2016 National ICT Australia (NICTA) +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// ------------------------------------------------------------------------ + + +//! \addtogroup fn_randu +//! @{ + + + +// scalars + +arma_warn_unused +inline +double +randu() + { + arma_extra_debug_sigprint(); + + return double(arma_rng::randu()); + } + + + +template +arma_warn_unused +inline +typename arma_real_or_cx_only::result +randu() + { + arma_extra_debug_sigprint(); + + return eT(arma_rng::randu()); + } + + + +arma_warn_unused +inline +double +randu(const distr_param& param) + { + arma_extra_debug_sigprint(); + + if(param.state == 0) { return double(arma_rng::randu()); } + + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + const double val = double(arma_rng::randu()); + + return ((val * (b - a)) + a); + } + + + +template +arma_warn_unused +inline +typename arma_real_or_cx_only::result +randu(const distr_param& param) + { + arma_extra_debug_sigprint(); + + if(param.state == 0) { return eT(arma_rng::randu()); } + + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + eT val = eT(0); + + arma_rng::randu::fill(&val, 1, a, b); // using fill() as eT can be complex + + return val; + } + + + +// vectors + +arma_warn_unused +inline +vec +randu(const uword n_elem, const distr_param& param = distr_param()) + { + arma_extra_debug_sigprint(); + + vec out(n_elem, arma_nozeros_indicator()); + + if(param.state == 0) + { + arma_rng::randu::fill(out.memptr(), n_elem); + } + else + { + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + arma_rng::randu::fill(out.memptr(), n_elem, a, b); + } + + return out; + } + + + +template +arma_warn_unused +inline +obj_type +randu(const uword n_elem, const distr_param& param = distr_param(), const typename arma_Mat_Col_Row_only::result* junk = nullptr) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + typedef typename obj_type::elem_type eT; + + const uword n_rows = (is_Row::value) ? uword(1) : n_elem; + const uword n_cols = (is_Row::value) ? n_elem : uword(1); + + obj_type out(n_rows, n_cols, arma_nozeros_indicator()); + + if(param.state == 0) + { + arma_rng::randu::fill(out.memptr(), out.n_elem); + } + else + { + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + arma_rng::randu::fill(out.memptr(), out.n_elem, a, b); + } + + return out; + } + + + +// matrices + +arma_warn_unused +inline +mat +randu(const uword n_rows, const uword n_cols, const distr_param& param = distr_param()) + { + arma_extra_debug_sigprint(); + + mat out(n_rows, n_cols, arma_nozeros_indicator()); + + if(param.state == 0) + { + arma_rng::randu::fill(out.memptr(), out.n_elem); + } + else + { + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + arma_rng::randu::fill(out.memptr(), out.n_elem, a, b); + } + + return out; + } + + + +arma_warn_unused +inline +mat +randu(const SizeMat& s, const distr_param& param = distr_param()) + { + arma_extra_debug_sigprint(); + + return randu(s.n_rows, s.n_cols, param); + } + + + +template +arma_warn_unused +inline +obj_type +randu(const uword n_rows, const uword n_cols, const distr_param& param = distr_param(), const typename arma_Mat_Col_Row_only::result* junk = nullptr) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + typedef typename obj_type::elem_type eT; + + if(is_Col::value) { arma_debug_check( (n_cols != 1), "randu(): incompatible size" ); } + if(is_Row::value) { arma_debug_check( (n_rows != 1), "randu(): incompatible size" ); } + + obj_type out(n_rows, n_cols, arma_nozeros_indicator()); + + if(param.state == 0) + { + arma_rng::randu::fill(out.memptr(), out.n_elem); + } + else + { + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + arma_rng::randu::fill(out.memptr(), out.n_elem, a, b); + } + + return out; + } + + + +template +arma_warn_unused +inline +obj_type +randu(const SizeMat& s, const distr_param& param = distr_param(), const typename arma_Mat_Col_Row_only::result* junk = nullptr) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + return randu(s.n_rows, s.n_cols, param); + } + + + +// cubes + + +arma_warn_unused +inline +cube +randu(const uword n_rows, const uword n_cols, const uword n_slices, const distr_param& param = distr_param()) + { + arma_extra_debug_sigprint(); + + cube out(n_rows, n_cols, n_slices, arma_nozeros_indicator()); + + if(param.state == 0) + { + arma_rng::randu::fill(out.memptr(), out.n_elem); + } + else + { + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + arma_rng::randu::fill(out.memptr(), out.n_elem, a, b); + } + + return out; + } + + + +arma_warn_unused +inline +cube +randu(const SizeCube& s, const distr_param& param = distr_param()) + { + arma_extra_debug_sigprint(); + + return randu(s.n_rows, s.n_cols, s.n_slices, param); + } + + + +template +arma_warn_unused +inline +cube_type +randu(const uword n_rows, const uword n_cols, const uword n_slices, const distr_param& param = distr_param(), const typename arma_Cube_only::result* junk = nullptr) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + typedef typename cube_type::elem_type eT; + + cube_type out(n_rows, n_cols, n_slices, arma_nozeros_indicator()); + + if(param.state == 0) + { + arma_rng::randu::fill(out.memptr(), out.n_elem); + } + else + { + double a = double(0); + double b = double(1); + + param.get_double_vals(a,b); + + arma_debug_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" ); + + arma_rng::randu::fill(out.memptr(), out.n_elem, a, b); + } + + return out; + } + + + +template +arma_warn_unused +inline +cube_type +randu(const SizeCube& s, const distr_param& param = distr_param(), const typename arma_Cube_only::result* junk = nullptr) + { + arma_extra_debug_sigprint(); + arma_ignore(junk); + + return randu(s.n_rows, s.n_cols, s.n_slices, param); + } + + + +//! @} -- cgit v1.2.1