1074 lines
23 KiB
C++
1074 lines
23 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// 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 spdiagview
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//! @{
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template<typename eT>
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inline
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spdiagview<eT>::~spdiagview()
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{
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arma_extra_debug_sigprint();
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}
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template<typename eT>
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arma_inline
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spdiagview<eT>::spdiagview(const SpMat<eT>& in_m, const uword in_row_offset, const uword in_col_offset, const uword in_len)
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: m(in_m)
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, row_offset(in_row_offset)
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, col_offset(in_col_offset)
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, n_rows(in_len)
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, n_elem(in_len)
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{
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arma_extra_debug_sigprint();
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}
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//! set a diagonal of our matrix using a diagonal from a foreign matrix
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template<typename eT>
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inline
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void
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spdiagview<eT>::operator= (const spdiagview<eT>& x)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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arma_debug_check( (d.n_elem != x.n_elem), "spdiagview: diagonals have incompatible lengths" );
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const SpMat<eT>& x_m = x.m;
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if( (&d_m == &x_m) || ((d.row_offset == 0) && (d.col_offset == 0)) )
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{
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const Mat<eT> tmp(x);
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(*this).operator=(tmp);
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}
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else
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{
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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const uword x_row_offset = x.row_offset;
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const uword x_col_offset = x.col_offset;
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) = x_m.at(i + x_row_offset, i + x_col_offset);
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}
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}
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}
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template<typename eT>
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inline
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void
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spdiagview<eT>::operator+=(const eT val)
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{
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arma_extra_debug_sigprint();
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if(val == eT(0)) { return; }
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SpMat<eT>& t_m = const_cast< SpMat<eT>& >(m);
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const uword t_n_elem = n_elem;
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const uword t_row_offset = row_offset;
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const uword t_col_offset = col_offset;
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for(uword i=0; i < t_n_elem; ++i)
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{
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t_m.at(i + t_row_offset, i + t_col_offset) += val;
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}
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}
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template<typename eT>
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inline
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void
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spdiagview<eT>::operator-=(const eT val)
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{
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arma_extra_debug_sigprint();
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if(val == eT(0)) { return; }
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SpMat<eT>& t_m = const_cast< SpMat<eT>& >(m);
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const uword t_n_elem = n_elem;
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const uword t_row_offset = row_offset;
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const uword t_col_offset = col_offset;
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for(uword i=0; i < t_n_elem; ++i)
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{
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t_m.at(i + t_row_offset, i + t_col_offset) -= val;
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}
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}
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template<typename eT>
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inline
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void
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spdiagview<eT>::operator*=(const eT val)
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{
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arma_extra_debug_sigprint();
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if(val == eT(0)) { (*this).zeros(); return; }
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SpMat<eT>& t_m = const_cast< SpMat<eT>& >(m);
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const uword t_n_elem = n_elem;
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const uword t_row_offset = row_offset;
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const uword t_col_offset = col_offset;
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for(uword i=0; i < t_n_elem; ++i)
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{
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t_m.at(i + t_row_offset, i + t_col_offset) *= val;
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}
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}
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template<typename eT>
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inline
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void
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spdiagview<eT>::operator/=(const eT val)
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{
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arma_extra_debug_sigprint();
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SpMat<eT>& t_m = const_cast< SpMat<eT>& >(m);
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const uword t_n_elem = n_elem;
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const uword t_row_offset = row_offset;
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const uword t_col_offset = col_offset;
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for(uword i=0; i < t_n_elem; ++i)
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{
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t_m.at(i + t_row_offset, i + t_col_offset) /= val;
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}
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}
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//! set a diagonal of our matrix using data from a foreign object
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator= (const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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if(is_same_type< T1, Gen<Col<eT>, gen_zeros> >::yes)
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{
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const Proxy<T1> P(o.get_ref());
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arma_debug_check( (d_n_elem != P.get_n_elem()), "spdiagview: given object has incompatible size" );
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(*this).zeros();
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return;
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}
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if(is_same_type< T1, Gen<Col<eT>, gen_ones> >::yes)
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{
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const Proxy<T1> P(o.get_ref());
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arma_debug_check( (d_n_elem != P.get_n_elem()), "spdiagview: given object has incompatible size" );
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(*this).ones();
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return;
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}
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const quasi_unwrap<T1> U(o.get_ref());
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const Mat<eT>& x = U.M;
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const eT* x_mem = x.memptr();
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arma_debug_check
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(
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( (d_n_elem != x.n_elem) || ((x.n_rows != 1) && (x.n_cols != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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if( (d_row_offset == 0) && (d_col_offset == 0) )
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{
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SpMat<eT> tmp1;
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tmp1.eye(d_m.n_rows, d_m.n_cols);
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bool has_zero = false;
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for(uword i=0; i < d_n_elem; ++i)
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{
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const eT val = x_mem[i];
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access::rw(tmp1.values[i]) = val;
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if(val == eT(0)) { has_zero = true; }
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}
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if(has_zero) { tmp1.remove_zeros(); }
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if(tmp1.n_nonzero == 0) { (*this).zeros(); return; }
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SpMat<eT> tmp2;
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spglue_merge::diagview_merge(tmp2, d_m, tmp1);
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d_m.steal_mem(tmp2);
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}
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else
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{
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) = x_mem[i];
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}
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}
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}
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator+=(const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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const Proxy<T1> P( o.get_ref() );
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arma_debug_check
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(
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( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::use_at) )
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{
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const unwrap<typename Proxy<T1>::stored_type> tmp(P.Q);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) += x_mem[i];
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}
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}
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else
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{
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typename Proxy<T1>::ea_type Pea = P.get_ea();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) += Pea[i];
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}
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}
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}
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator-=(const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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const Proxy<T1> P( o.get_ref() );
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arma_debug_check
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(
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( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::use_at) )
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{
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const unwrap<typename Proxy<T1>::stored_type> tmp(P.Q);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) -= x_mem[i];
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}
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}
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else
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{
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typename Proxy<T1>::ea_type Pea = P.get_ea();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) -= Pea[i];
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}
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}
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}
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator%=(const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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const Proxy<T1> P( o.get_ref() );
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arma_debug_check
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(
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( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::use_at) )
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{
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const unwrap<typename Proxy<T1>::stored_type> tmp(P.Q);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) *= x_mem[i];
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}
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}
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else
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{
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typename Proxy<T1>::ea_type Pea = P.get_ea();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) *= Pea[i];
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}
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}
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}
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator/=(const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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const Proxy<T1> P( o.get_ref() );
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arma_debug_check
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(
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( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::use_at) )
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{
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const unwrap<typename Proxy<T1>::stored_type> tmp(P.Q);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) /= x_mem[i];
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}
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}
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else
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{
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typename Proxy<T1>::ea_type Pea = P.get_ea();
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for(uword i=0; i < d_n_elem; ++i)
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{
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d_m.at(i + d_row_offset, i + d_col_offset) /= Pea[i];
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}
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}
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}
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//! set a diagonal of our matrix using data from a foreign object
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator= (const SpBase<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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const unwrap_spmat<T1> U( o.get_ref() );
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const SpMat<eT>& x = U.M;
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arma_debug_check
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(
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( (n_elem != x.n_elem) || ((x.n_rows != 1) && (x.n_cols != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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const Mat<eT> tmp(x);
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(*this).operator=(tmp);
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}
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template<typename eT>
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template<typename T1>
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inline
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void
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spdiagview<eT>::operator+=(const SpBase<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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spdiagview<eT>& d = *this;
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SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
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const uword d_n_elem = d.n_elem;
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const uword d_row_offset = d.row_offset;
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const uword d_col_offset = d.col_offset;
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const SpProxy<T1> P( o.get_ref() );
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arma_debug_check
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(
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( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
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"spdiagview: given object has incompatible size"
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);
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if( SpProxy<T1>::use_iterator || P.is_alias(d_m) )
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{
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const SpMat<eT> tmp(P.Q);
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if(tmp.n_cols == 1)
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{
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for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) += tmp.at(i,0); }
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}
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else
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if(tmp.n_rows == 1)
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{
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for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) += tmp.at(0,i); }
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}
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}
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else
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{
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if(P.get_n_cols() == 1)
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{
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for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) += P.at(i,0); }
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}
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else
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if(P.get_n_rows() == 1)
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{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) += P.at(0,i); }
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
spdiagview<eT>::operator-=(const SpBase<eT,T1>& o)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
spdiagview<eT>& d = *this;
|
|
|
|
SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
|
|
|
|
const uword d_n_elem = d.n_elem;
|
|
const uword d_row_offset = d.row_offset;
|
|
const uword d_col_offset = d.col_offset;
|
|
|
|
const SpProxy<T1> P( o.get_ref() );
|
|
|
|
arma_debug_check
|
|
(
|
|
( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
|
|
"spdiagview: given object has incompatible size"
|
|
);
|
|
|
|
if( SpProxy<T1>::use_iterator || P.is_alias(d_m) )
|
|
{
|
|
const SpMat<eT> tmp(P.Q);
|
|
|
|
if(tmp.n_cols == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) -= tmp.at(i,0); }
|
|
}
|
|
else
|
|
if(tmp.n_rows == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) -= tmp.at(0,i); }
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(P.get_n_cols() == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) -= P.at(i,0); }
|
|
}
|
|
else
|
|
if(P.get_n_rows() == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) -= P.at(0,i); }
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
spdiagview<eT>::operator%=(const SpBase<eT,T1>& o)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
spdiagview<eT>& d = *this;
|
|
|
|
SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
|
|
|
|
const uword d_n_elem = d.n_elem;
|
|
const uword d_row_offset = d.row_offset;
|
|
const uword d_col_offset = d.col_offset;
|
|
|
|
const SpProxy<T1> P( o.get_ref() );
|
|
|
|
arma_debug_check
|
|
(
|
|
( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
|
|
"spdiagview: given object has incompatible size"
|
|
);
|
|
|
|
if( SpProxy<T1>::use_iterator || P.is_alias(d_m) )
|
|
{
|
|
const SpMat<eT> tmp(P.Q);
|
|
|
|
if(tmp.n_cols == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) *= tmp.at(i,0); }
|
|
}
|
|
else
|
|
if(tmp.n_rows == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) *= tmp.at(0,i); }
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(P.get_n_cols() == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) *= P.at(i,0); }
|
|
}
|
|
else
|
|
if(P.get_n_rows() == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) *= P.at(0,i); }
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
spdiagview<eT>::operator/=(const SpBase<eT,T1>& o)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
spdiagview<eT>& d = *this;
|
|
|
|
SpMat<eT>& d_m = const_cast< SpMat<eT>& >(d.m);
|
|
|
|
const uword d_n_elem = d.n_elem;
|
|
const uword d_row_offset = d.row_offset;
|
|
const uword d_col_offset = d.col_offset;
|
|
|
|
const SpProxy<T1> P( o.get_ref() );
|
|
|
|
arma_debug_check
|
|
(
|
|
( (d_n_elem != P.get_n_elem()) || ((P.get_n_rows() != 1) && (P.get_n_cols() != 1)) ),
|
|
"spdiagview: given object has incompatible size"
|
|
);
|
|
|
|
if( SpProxy<T1>::use_iterator || P.is_alias(d_m) )
|
|
{
|
|
const SpMat<eT> tmp(P.Q);
|
|
|
|
if(tmp.n_cols == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) /= tmp.at(i,0); }
|
|
}
|
|
else
|
|
if(tmp.n_rows == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) /= tmp.at(0,i); }
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(P.get_n_cols() == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) /= P.at(i,0); }
|
|
}
|
|
else
|
|
if(P.get_n_rows() == 1)
|
|
{
|
|
for(uword i=0; i < d_n_elem; ++i) { d_m.at(i + d_row_offset, i + d_col_offset) /= P.at(0,i); }
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::extract(SpMat<eT>& out, const spdiagview<eT>& d)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const SpMat<eT>& d_m = d.m;
|
|
|
|
const uword d_n_elem = d.n_elem;
|
|
const uword d_row_offset = d.row_offset;
|
|
const uword d_col_offset = d.col_offset;
|
|
|
|
Col<eT> cache(d_n_elem, arma_nozeros_indicator());
|
|
eT* cache_mem = cache.memptr();
|
|
|
|
uword d_n_nonzero = 0;
|
|
|
|
for(uword i=0; i < d_n_elem; ++i)
|
|
{
|
|
const eT val = d_m.at(i + d_row_offset, i + d_col_offset);
|
|
|
|
cache_mem[i] = val;
|
|
|
|
d_n_nonzero += (val != eT(0)) ? uword(1) : uword(0);
|
|
}
|
|
|
|
out.reserve(d_n_elem, 1, d_n_nonzero);
|
|
|
|
uword count = 0;
|
|
for(uword i=0; i < d_n_elem; ++i)
|
|
{
|
|
const eT val = cache_mem[i];
|
|
|
|
if(val != eT(0))
|
|
{
|
|
access::rw(out.row_indices[count]) = i;
|
|
access::rw(out.values[count]) = val;
|
|
++count;
|
|
}
|
|
}
|
|
|
|
access::rw(out.col_ptrs[0]) = 0;
|
|
access::rw(out.col_ptrs[1]) = d_n_nonzero;
|
|
}
|
|
|
|
|
|
|
|
//! extract a diagonal and store it as a dense column vector
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::extract(Mat<eT>& out, const spdiagview<eT>& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
// NOTE: we're assuming that the 'out' matrix has already been set to the correct size;
|
|
// size setting is done by either the Mat contructor or Mat::operator=()
|
|
|
|
const SpMat<eT>& in_m = in.m;
|
|
|
|
const uword in_n_elem = in.n_elem;
|
|
const uword in_row_offset = in.row_offset;
|
|
const uword in_col_offset = in.col_offset;
|
|
|
|
eT* out_mem = out.memptr();
|
|
|
|
for(uword i=0; i < in_n_elem; ++i)
|
|
{
|
|
out_mem[i] = in_m.at(i + in_row_offset, i + in_col_offset);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
SpMat_MapMat_val<eT>
|
|
spdiagview<eT>::operator[](const uword i)
|
|
{
|
|
return (const_cast< SpMat<eT>& >(m)).at(i+row_offset, i+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
eT
|
|
spdiagview<eT>::operator[](const uword i) const
|
|
{
|
|
return m.at(i+row_offset, i+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
SpMat_MapMat_val<eT>
|
|
spdiagview<eT>::at(const uword i)
|
|
{
|
|
return (const_cast< SpMat<eT>& >(m)).at(i+row_offset, i+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
eT
|
|
spdiagview<eT>::at(const uword i) const
|
|
{
|
|
return m.at(i+row_offset, i+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
SpMat_MapMat_val<eT>
|
|
spdiagview<eT>::operator()(const uword i)
|
|
{
|
|
arma_debug_check_bounds( (i >= n_elem), "spdiagview::operator(): out of bounds" );
|
|
|
|
return (const_cast< SpMat<eT>& >(m)).at(i+row_offset, i+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
eT
|
|
spdiagview<eT>::operator()(const uword i) const
|
|
{
|
|
arma_debug_check_bounds( (i >= n_elem), "spdiagview::operator(): out of bounds" );
|
|
|
|
return m.at(i+row_offset, i+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
SpMat_MapMat_val<eT>
|
|
spdiagview<eT>::at(const uword row, const uword)
|
|
{
|
|
return (const_cast< SpMat<eT>& >(m)).at(row+row_offset, row+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
eT
|
|
spdiagview<eT>::at(const uword row, const uword) const
|
|
{
|
|
return m.at(row+row_offset, row+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
SpMat_MapMat_val<eT>
|
|
spdiagview<eT>::operator()(const uword row, const uword col)
|
|
{
|
|
arma_debug_check_bounds( ((row >= n_elem) || (col > 0)), "spdiagview::operator(): out of bounds" );
|
|
|
|
return (const_cast< SpMat<eT>& >(m)).at(row+row_offset, row+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
eT
|
|
spdiagview<eT>::operator()(const uword row, const uword col) const
|
|
{
|
|
arma_debug_check_bounds( ((row >= n_elem) || (col > 0)), "spdiagview::operator(): out of bounds" );
|
|
|
|
return m.at(row+row_offset, row+col_offset);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::replace(const eT old_val, const eT new_val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
if(old_val == eT(0))
|
|
{
|
|
arma_debug_warn_level(1, "spdiagview::replace(): replacement not done, as old_val = 0");
|
|
}
|
|
else
|
|
{
|
|
Mat<eT> tmp(*this);
|
|
|
|
tmp.replace(old_val, new_val);
|
|
|
|
(*this).operator=(tmp);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::clean(const typename get_pod_type<eT>::result threshold)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
Mat<eT> tmp(*this);
|
|
|
|
tmp.clean(threshold);
|
|
|
|
(*this).operator=(tmp);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::clamp(const eT min_val, const eT max_val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
SpMat<eT> tmp(*this);
|
|
|
|
tmp.clamp(min_val, max_val);
|
|
|
|
(*this).operator=(tmp);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::fill(const eT val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
if( (row_offset == 0) && (col_offset == 0) && (m.sync_state != 1) )
|
|
{
|
|
if(val == eT(0))
|
|
{
|
|
SpMat<eT> tmp(arma_reserve_indicator(), m.n_rows, m.n_cols, m.n_nonzero); // worst case scenario
|
|
|
|
typename SpMat<eT>::const_iterator it = m.begin();
|
|
typename SpMat<eT>::const_iterator it_end = m.end();
|
|
|
|
uword count = 0;
|
|
|
|
for(; it != it_end; ++it)
|
|
{
|
|
const uword row = it.row();
|
|
const uword col = it.col();
|
|
|
|
if(row != col)
|
|
{
|
|
access::rw(tmp.values[count]) = (*it);
|
|
access::rw(tmp.row_indices[count]) = row;
|
|
access::rw(tmp.col_ptrs[col + 1])++;
|
|
++count;
|
|
}
|
|
}
|
|
|
|
for(uword i=0; i < tmp.n_cols; ++i)
|
|
{
|
|
access::rw(tmp.col_ptrs[i + 1]) += tmp.col_ptrs[i];
|
|
}
|
|
|
|
// quick resize without reallocating memory and copying data
|
|
access::rw( tmp.n_nonzero) = count;
|
|
access::rw( tmp.values[count]) = eT(0);
|
|
access::rw(tmp.row_indices[count]) = uword(0);
|
|
|
|
access::rw(m).steal_mem(tmp);
|
|
}
|
|
else // val != eT(0)
|
|
{
|
|
SpMat<eT> tmp1;
|
|
|
|
tmp1.eye(m.n_rows, m.n_cols);
|
|
|
|
if(val != eT(1)) { tmp1 *= val; }
|
|
|
|
SpMat<eT> tmp2;
|
|
|
|
spglue_merge::diagview_merge(tmp2, m, tmp1);
|
|
|
|
access::rw(m).steal_mem(tmp2);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SpMat<eT>& x = const_cast< SpMat<eT>& >(m);
|
|
|
|
const uword local_n_elem = n_elem;
|
|
|
|
for(uword i=0; i < local_n_elem; ++i)
|
|
{
|
|
x.at(i+row_offset, i+col_offset) = val;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::zeros()
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
(*this).fill(eT(0));
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::ones()
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
(*this).fill(eT(1));
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::randu()
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
SpMat<eT>& x = const_cast< SpMat<eT>& >(m);
|
|
|
|
const uword local_n_elem = n_elem;
|
|
|
|
for(uword i=0; i < local_n_elem; ++i)
|
|
{
|
|
x.at(i+row_offset, i+col_offset) = eT(arma_rng::randu<eT>());
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
spdiagview<eT>::randn()
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
SpMat<eT>& x = const_cast< SpMat<eT>& >(m);
|
|
|
|
const uword local_n_elem = n_elem;
|
|
|
|
for(uword i=0; i < local_n_elem; ++i)
|
|
{
|
|
x.at(i+row_offset, i+col_offset) = eT(arma_rng::randn<eT>());
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//! @}
|