947 lines
20 KiB
C++
947 lines
20 KiB
C++
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// Copyright (C) 2008-2015 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup diagview
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//! @{
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template<typename eT>
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inline
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diagview<eT>::~diagview()
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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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diagview<eT>::diagview(const Mat<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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diagview<eT>::operator= (const diagview<eT>& x)
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{
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arma_extra_debug_sigprint();
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diagview<eT>& d = *this;
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arma_debug_check( (d.n_elem != x.n_elem), "diagview: diagonals have incompatible lengths");
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Mat<eT>& d_m = const_cast< Mat<eT>& >(d.m);
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const Mat<eT>& x_m = x.m;
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if(&d_m != &x_m)
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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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uword ii,jj;
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for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
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{
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const eT tmp_i = x_m.at(ii + x_row_offset, ii + x_col_offset);
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const eT tmp_j = x_m.at(jj + x_row_offset, jj + x_col_offset);
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d_m.at(ii + d_row_offset, ii + d_col_offset) = tmp_i;
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d_m.at(jj + d_row_offset, jj + d_col_offset) = tmp_j;
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}
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if(ii < d_n_elem)
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{
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d_m.at(ii + d_row_offset, ii + d_col_offset) = x_m.at(ii + x_row_offset, ii + x_col_offset);
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}
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}
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else
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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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}
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template<typename eT>
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inline
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void
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diagview<eT>::operator+=(const eT val)
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{
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arma_extra_debug_sigprint();
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Mat<eT>& t_m = const_cast< Mat<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 ii=0; ii < t_n_elem; ++ii)
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{
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t_m.at( ii + t_row_offset, ii + 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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diagview<eT>::operator-=(const eT val)
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{
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arma_extra_debug_sigprint();
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Mat<eT>& t_m = const_cast< Mat<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 ii=0; ii < t_n_elem; ++ii)
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{
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t_m.at( ii + t_row_offset, ii + 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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diagview<eT>::operator*=(const eT val)
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{
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arma_extra_debug_sigprint();
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Mat<eT>& t_m = const_cast< Mat<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 ii=0; ii < t_n_elem; ++ii)
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{
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t_m.at( ii + t_row_offset, ii + 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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diagview<eT>::operator/=(const eT val)
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{
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arma_extra_debug_sigprint();
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Mat<eT>& t_m = const_cast< Mat<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 ii=0; ii < t_n_elem; ++ii)
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{
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t_m.at( ii + t_row_offset, ii + 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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diagview<eT>::operator= (const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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diagview<eT>& d = *this;
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Mat<eT>& d_m = const_cast< Mat<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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"diagview: given object has incompatible size"
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);
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const bool is_alias = P.is_alias(d_m);
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if(is_alias) { arma_extra_debug_print("aliasing detected"); }
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::prefer_at_accessor) || (is_alias) )
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{
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const unwrap_check<typename Proxy<T1>::stored_type> tmp(P.Q, is_alias);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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uword ii,jj;
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for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
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{
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const eT tmp_i = x_mem[ii];
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const eT tmp_j = x_mem[jj];
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d_m.at( ii + d_row_offset, ii + d_col_offset) = tmp_i;
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d_m.at( jj + d_row_offset, jj + d_col_offset) = tmp_j;
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}
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if(ii < d_n_elem)
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{
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d_m.at( ii + d_row_offset, ii + d_col_offset) = x_mem[ii];
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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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uword ii,jj;
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for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
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{
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const eT tmp_i = Pea[ii];
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const eT tmp_j = Pea[jj];
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d_m.at( ii + d_row_offset, ii + d_col_offset) = tmp_i;
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d_m.at( jj + d_row_offset, jj + d_col_offset) = tmp_j;
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}
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if(ii < d_n_elem)
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{
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d_m.at( ii + d_row_offset, ii + d_col_offset) = Pea[ii];
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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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diagview<eT>::operator+=(const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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diagview<eT>& d = *this;
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Mat<eT>& d_m = const_cast< Mat<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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"diagview: given object has incompatible size"
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);
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const bool is_alias = P.is_alias(d_m);
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if(is_alias) { arma_extra_debug_print("aliasing detected"); }
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::prefer_at_accessor) || (is_alias) )
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{
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const unwrap_check<typename Proxy<T1>::stored_type> tmp(P.Q, is_alias);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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uword ii,jj;
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for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
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{
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const eT tmp_i = x_mem[ii];
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const eT tmp_j = x_mem[jj];
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d_m.at( ii + d_row_offset, ii + d_col_offset) += tmp_i;
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d_m.at( jj + d_row_offset, jj + d_col_offset) += tmp_j;
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}
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if(ii < d_n_elem)
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{
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d_m.at( ii + d_row_offset, ii + d_col_offset) += x_mem[ii];
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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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uword ii,jj;
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for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
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{
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const eT tmp_i = Pea[ii];
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const eT tmp_j = Pea[jj];
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d_m.at( ii + d_row_offset, ii + d_col_offset) += tmp_i;
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d_m.at( jj + d_row_offset, jj + d_col_offset) += tmp_j;
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}
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if(ii < d_n_elem)
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{
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d_m.at( ii + d_row_offset, ii + d_col_offset) += Pea[ii];
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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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diagview<eT>::operator-=(const Base<eT,T1>& o)
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{
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arma_extra_debug_sigprint();
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diagview<eT>& d = *this;
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Mat<eT>& d_m = const_cast< Mat<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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"diagview: given object has incompatible size"
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);
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const bool is_alias = P.is_alias(d_m);
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if(is_alias) { arma_extra_debug_print("aliasing detected"); }
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if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::prefer_at_accessor) || (is_alias) )
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{
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const unwrap_check<typename Proxy<T1>::stored_type> tmp(P.Q, is_alias);
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const Mat<eT>& x = tmp.M;
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const eT* x_mem = x.memptr();
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uword ii,jj;
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for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
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{
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const eT tmp_i = x_mem[ii];
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const eT tmp_j = x_mem[jj];
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d_m.at( ii + d_row_offset, ii + d_col_offset) -= tmp_i;
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d_m.at( jj + d_row_offset, jj + d_col_offset) -= tmp_j;
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}
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if(ii < d_n_elem)
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{
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d_m.at( ii + d_row_offset, ii + d_col_offset) -= x_mem[ii];
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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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uword ii,jj;
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|
|
for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = Pea[ii];
|
||
|
|
const eT tmp_j = Pea[jj];
|
||
|
|
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) -= tmp_i;
|
||
|
|
d_m.at( jj + d_row_offset, jj + d_col_offset) -= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(ii < d_n_elem)
|
||
|
|
{
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) -= Pea[ii];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::operator%=(const Base<eT,T1>& o)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
diagview<eT>& d = *this;
|
||
|
|
|
||
|
|
Mat<eT>& d_m = const_cast< Mat<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 Proxy<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)) ),
|
||
|
|
"diagview: given object has incompatible size"
|
||
|
|
);
|
||
|
|
|
||
|
|
const bool is_alias = P.is_alias(d_m);
|
||
|
|
|
||
|
|
if(is_alias) { arma_extra_debug_print("aliasing detected"); }
|
||
|
|
|
||
|
|
if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::prefer_at_accessor) || (is_alias) )
|
||
|
|
{
|
||
|
|
const unwrap_check<typename Proxy<T1>::stored_type> tmp(P.Q, is_alias);
|
||
|
|
const Mat<eT>& x = tmp.M;
|
||
|
|
|
||
|
|
const eT* x_mem = x.memptr();
|
||
|
|
|
||
|
|
uword ii,jj;
|
||
|
|
for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = x_mem[ii];
|
||
|
|
const eT tmp_j = x_mem[jj];
|
||
|
|
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) *= tmp_i;
|
||
|
|
d_m.at( jj + d_row_offset, jj + d_col_offset) *= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(ii < d_n_elem)
|
||
|
|
{
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) *= x_mem[ii];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
typename Proxy<T1>::ea_type Pea = P.get_ea();
|
||
|
|
|
||
|
|
uword ii,jj;
|
||
|
|
for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = Pea[ii];
|
||
|
|
const eT tmp_j = Pea[jj];
|
||
|
|
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) *= tmp_i;
|
||
|
|
d_m.at( jj + d_row_offset, jj + d_col_offset) *= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(ii < d_n_elem)
|
||
|
|
{
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) *= Pea[ii];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
template<typename T1>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::operator/=(const Base<eT,T1>& o)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
diagview<eT>& d = *this;
|
||
|
|
|
||
|
|
Mat<eT>& d_m = const_cast< Mat<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 Proxy<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)) ),
|
||
|
|
"diagview: given object has incompatible size"
|
||
|
|
);
|
||
|
|
|
||
|
|
const bool is_alias = P.is_alias(d_m);
|
||
|
|
|
||
|
|
if(is_alias) { arma_extra_debug_print("aliasing detected"); }
|
||
|
|
|
||
|
|
if( (is_Mat<typename Proxy<T1>::stored_type>::value) || (Proxy<T1>::prefer_at_accessor) || (is_alias) )
|
||
|
|
{
|
||
|
|
const unwrap_check<typename Proxy<T1>::stored_type> tmp(P.Q, is_alias);
|
||
|
|
const Mat<eT>& x = tmp.M;
|
||
|
|
|
||
|
|
const eT* x_mem = x.memptr();
|
||
|
|
|
||
|
|
uword ii,jj;
|
||
|
|
for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = x_mem[ii];
|
||
|
|
const eT tmp_j = x_mem[jj];
|
||
|
|
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) /= tmp_i;
|
||
|
|
d_m.at( jj + d_row_offset, jj + d_col_offset) /= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(ii < d_n_elem)
|
||
|
|
{
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) /= x_mem[ii];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
typename Proxy<T1>::ea_type Pea = P.get_ea();
|
||
|
|
|
||
|
|
uword ii,jj;
|
||
|
|
for(ii=0, jj=1; jj < d_n_elem; ii+=2, jj+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = Pea[ii];
|
||
|
|
const eT tmp_j = Pea[jj];
|
||
|
|
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) /= tmp_i;
|
||
|
|
d_m.at( jj + d_row_offset, jj + d_col_offset) /= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(ii < d_n_elem)
|
||
|
|
{
|
||
|
|
d_m.at( ii + d_row_offset, ii + d_col_offset) /= Pea[ii];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! extract a diagonal and store it as a column vector
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::extract(Mat<eT>& out, const diagview<eT>& in)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
// NOTE: we're assuming that the matrix has already been set to the correct size and there is no aliasing;
|
||
|
|
// size setting and alias checking is done by either the Mat contructor or operator=()
|
||
|
|
|
||
|
|
const Mat<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();
|
||
|
|
|
||
|
|
uword i,j;
|
||
|
|
for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
|
||
|
|
|
||
|
|
out_mem[i] = tmp_i;
|
||
|
|
out_mem[j] = tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(i < in_n_elem)
|
||
|
|
{
|
||
|
|
out_mem[i] = in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! X += Y.diag()
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::plus_inplace(Mat<eT>& out, const diagview<eT>& in)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "addition");
|
||
|
|
|
||
|
|
const Mat<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();
|
||
|
|
|
||
|
|
uword i,j;
|
||
|
|
for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
|
||
|
|
|
||
|
|
out_mem[i] += tmp_i;
|
||
|
|
out_mem[j] += tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(i < in_n_elem)
|
||
|
|
{
|
||
|
|
out_mem[i] += in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! X -= Y.diag()
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::minus_inplace(Mat<eT>& out, const diagview<eT>& in)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "subtraction");
|
||
|
|
|
||
|
|
const Mat<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();
|
||
|
|
|
||
|
|
uword i,j;
|
||
|
|
for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
|
||
|
|
|
||
|
|
out_mem[i] -= tmp_i;
|
||
|
|
out_mem[j] -= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(i < in_n_elem)
|
||
|
|
{
|
||
|
|
out_mem[i] -= in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! X %= Y.diag()
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::schur_inplace(Mat<eT>& out, const diagview<eT>& in)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "element-wise multiplication");
|
||
|
|
|
||
|
|
const Mat<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();
|
||
|
|
|
||
|
|
uword i,j;
|
||
|
|
for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
|
||
|
|
|
||
|
|
out_mem[i] *= tmp_i;
|
||
|
|
out_mem[j] *= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(i < in_n_elem)
|
||
|
|
{
|
||
|
|
out_mem[i] *= in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! X /= Y.diag()
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::div_inplace(Mat<eT>& out, const diagview<eT>& in)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
arma_debug_assert_same_size(out.n_rows, out.n_cols, in.n_rows, in.n_cols, "element-wise division");
|
||
|
|
|
||
|
|
const Mat<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();
|
||
|
|
|
||
|
|
uword i,j;
|
||
|
|
for(i=0, j=1; j < in_n_elem; i+=2, j+=2)
|
||
|
|
{
|
||
|
|
const eT tmp_i = in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
const eT tmp_j = in_m.at( j + in_row_offset, j + in_col_offset );
|
||
|
|
|
||
|
|
out_mem[i] /= tmp_i;
|
||
|
|
out_mem[j] /= tmp_j;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(i < in_n_elem)
|
||
|
|
{
|
||
|
|
out_mem[i] /= in_m.at( i + in_row_offset, i + in_col_offset );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT
|
||
|
|
diagview<eT>::at_alt(const uword ii) const
|
||
|
|
{
|
||
|
|
return m.at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT&
|
||
|
|
diagview<eT>::operator[](const uword ii)
|
||
|
|
{
|
||
|
|
return (const_cast< Mat<eT>& >(m)).at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT
|
||
|
|
diagview<eT>::operator[](const uword ii) const
|
||
|
|
{
|
||
|
|
return m.at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT&
|
||
|
|
diagview<eT>::at(const uword ii)
|
||
|
|
{
|
||
|
|
return (const_cast< Mat<eT>& >(m)).at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT
|
||
|
|
diagview<eT>::at(const uword ii) const
|
||
|
|
{
|
||
|
|
return m.at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT&
|
||
|
|
diagview<eT>::operator()(const uword ii)
|
||
|
|
{
|
||
|
|
arma_debug_check( (ii >= n_elem), "diagview::operator(): out of bounds" );
|
||
|
|
|
||
|
|
return (const_cast< Mat<eT>& >(m)).at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT
|
||
|
|
diagview<eT>::operator()(const uword ii) const
|
||
|
|
{
|
||
|
|
arma_debug_check( (ii >= n_elem), "diagview::operator(): out of bounds" );
|
||
|
|
|
||
|
|
return m.at(ii+row_offset, ii+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT&
|
||
|
|
diagview<eT>::at(const uword row, const uword)
|
||
|
|
{
|
||
|
|
return (const_cast< Mat<eT>& >(m)).at(row+row_offset, row+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT
|
||
|
|
diagview<eT>::at(const uword row, const uword) const
|
||
|
|
{
|
||
|
|
return m.at(row+row_offset, row+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT&
|
||
|
|
diagview<eT>::operator()(const uword row, const uword col)
|
||
|
|
{
|
||
|
|
arma_debug_check( ((row >= n_elem) || (col > 0)), "diagview::operator(): out of bounds" );
|
||
|
|
|
||
|
|
return (const_cast< Mat<eT>& >(m)).at(row+row_offset, row+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
eT
|
||
|
|
diagview<eT>::operator()(const uword row, const uword col) const
|
||
|
|
{
|
||
|
|
arma_debug_check( ((row >= n_elem) || (col > 0)), "diagview::operator(): out of bounds" );
|
||
|
|
|
||
|
|
return m.at(row+row_offset, row+col_offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
const Op<diagview<eT>,op_htrans>
|
||
|
|
diagview<eT>::t() const
|
||
|
|
{
|
||
|
|
return Op<diagview<eT>,op_htrans>(*this);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
const Op<diagview<eT>,op_htrans>
|
||
|
|
diagview<eT>::ht() const
|
||
|
|
{
|
||
|
|
return Op<diagview<eT>,op_htrans>(*this);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
arma_inline
|
||
|
|
const Op<diagview<eT>,op_strans>
|
||
|
|
diagview<eT>::st() const
|
||
|
|
{
|
||
|
|
return Op<diagview<eT>,op_strans>(*this);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::fill(const eT val)
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
Mat<eT>& x = const_cast< Mat<eT>& >(m);
|
||
|
|
|
||
|
|
const uword local_n_elem = n_elem;
|
||
|
|
|
||
|
|
for(uword ii=0; ii < local_n_elem; ++ii)
|
||
|
|
{
|
||
|
|
x.at(ii+row_offset, ii+col_offset) = val;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::zeros()
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
(*this).fill(eT(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::ones()
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
(*this).fill(eT(1));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::randu()
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
Mat<eT>& x = const_cast< Mat<eT>& >(m);
|
||
|
|
|
||
|
|
const uword local_n_elem = n_elem;
|
||
|
|
|
||
|
|
for(uword ii=0; ii < local_n_elem; ++ii)
|
||
|
|
{
|
||
|
|
x.at(ii+row_offset, ii+col_offset) = eT(arma_rng::randu<eT>());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
template<typename eT>
|
||
|
|
inline
|
||
|
|
void
|
||
|
|
diagview<eT>::randn()
|
||
|
|
{
|
||
|
|
arma_extra_debug_sigprint();
|
||
|
|
|
||
|
|
Mat<eT>& x = const_cast< Mat<eT>& >(m);
|
||
|
|
|
||
|
|
const uword local_n_elem = n_elem;
|
||
|
|
|
||
|
|
for(uword ii=0; ii < local_n_elem; ++ii)
|
||
|
|
{
|
||
|
|
x.at(ii+row_offset, ii+col_offset) = eT(arma_rng::randn<eT>());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
//! @}
|