190 lines
4.3 KiB
C++
190 lines
4.3 KiB
C++
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup fn_randu
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//! @{
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arma_warn_unused
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inline
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double
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randu()
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{
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return double(arma_rng::randu<double>());
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}
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template<typename eT>
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arma_warn_unused
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inline
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typename arma_real_or_cx_only<eT>::result
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randu()
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{
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return eT(arma_rng::randu<eT>());
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}
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//! Generate a vector with all elements set to random values in the [0,1] interval (uniform distribution)
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arma_warn_unused
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arma_inline
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const Gen<vec, gen_randu>
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randu(const uword n_elem)
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{
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arma_extra_debug_sigprint();
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return Gen<vec, gen_randu>(n_elem, 1);
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}
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template<typename obj_type>
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arma_warn_unused
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arma_inline
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const Gen<obj_type, gen_randu>
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randu(const uword n_elem, const arma_empty_class junk1 = arma_empty_class(), const typename arma_Mat_Col_Row_only<obj_type>::result* junk2 = nullptr)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk1);
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arma_ignore(junk2);
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const uword n_rows = (is_Row<obj_type>::value) ? uword(1) : n_elem;
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const uword n_cols = (is_Row<obj_type>::value) ? n_elem : uword(1);
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return Gen<obj_type, gen_randu>(n_rows, n_cols);
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}
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//! Generate a dense matrix with all elements set to random values in the [0,1] interval (uniform distribution)
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arma_warn_unused
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arma_inline
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const Gen<mat, gen_randu>
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randu(const uword n_rows, const uword n_cols)
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{
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arma_extra_debug_sigprint();
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return Gen<mat, gen_randu>(n_rows, n_cols);
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}
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arma_warn_unused
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arma_inline
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const Gen<mat, gen_randu>
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randu(const SizeMat& s)
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{
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arma_extra_debug_sigprint();
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return Gen<mat, gen_randu>(s.n_rows, s.n_cols);
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}
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template<typename obj_type>
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arma_warn_unused
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arma_inline
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const Gen<obj_type, gen_randu>
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randu(const uword n_rows, const uword n_cols, const typename arma_Mat_Col_Row_only<obj_type>::result* junk = nullptr)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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if(is_Col<obj_type>::value)
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{
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arma_debug_check( (n_cols != 1), "randu(): incompatible size" );
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}
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else
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if(is_Row<obj_type>::value)
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{
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arma_debug_check( (n_rows != 1), "randu(): incompatible size" );
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}
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return Gen<obj_type, gen_randu>(n_rows, n_cols);
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}
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template<typename obj_type>
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arma_warn_unused
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arma_inline
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const Gen<obj_type, gen_randu>
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randu(const SizeMat& s, const typename arma_Mat_Col_Row_only<obj_type>::result* junk = nullptr)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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return randu<obj_type>(s.n_rows, s.n_cols);
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}
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arma_warn_unused
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arma_inline
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const GenCube<cube::elem_type, gen_randu>
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randu(const uword n_rows, const uword n_cols, const uword n_slices)
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{
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arma_extra_debug_sigprint();
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return GenCube<cube::elem_type, gen_randu>(n_rows, n_cols, n_slices);
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}
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arma_warn_unused
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arma_inline
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const GenCube<cube::elem_type, gen_randu>
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randu(const SizeCube& s)
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{
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arma_extra_debug_sigprint();
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return GenCube<cube::elem_type, gen_randu>(s.n_rows, s.n_cols, s.n_slices);
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}
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template<typename cube_type>
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arma_warn_unused
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arma_inline
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const GenCube<typename cube_type::elem_type, gen_randu>
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randu(const uword n_rows, const uword n_cols, const uword n_slices, const typename arma_Cube_only<cube_type>::result* junk = nullptr)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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return GenCube<typename cube_type::elem_type, gen_randu>(n_rows, n_cols, n_slices);
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}
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template<typename cube_type>
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arma_warn_unused
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arma_inline
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const GenCube<typename cube_type::elem_type, gen_randu>
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randu(const SizeCube& s, const typename arma_Cube_only<cube_type>::result* junk = nullptr)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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return GenCube<typename cube_type::elem_type, gen_randu>(s.n_rows, s.n_cols, s.n_slices);
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}
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//! @}
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