432 lines
9.9 KiB
C++
432 lines
9.9 KiB
C++
// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
|
|
// Copyright 2008-2016 National ICT Australia (NICTA)
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
// ------------------------------------------------------------------------
|
|
|
|
|
|
//! \addtogroup op_index_max
|
|
//! @{
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
op_index_max::apply(Mat<uword>& out, const mtOp<uword,T1,op_index_max>& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT;
|
|
|
|
const uword dim = in.aux_uword_a;
|
|
arma_debug_check( (dim > 1), "index_max(): parameter 'dim' must be 0 or 1" );
|
|
|
|
const quasi_unwrap<T1> U(in.m);
|
|
const Mat<eT>& X = U.M;
|
|
|
|
if(U.is_alias(out) == false)
|
|
{
|
|
op_index_max::apply_noalias(out, X, dim);
|
|
}
|
|
else
|
|
{
|
|
Mat<uword> tmp;
|
|
|
|
op_index_max::apply_noalias(tmp, X, dim);
|
|
|
|
out.steal_mem(tmp);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
op_index_max::apply_noalias(Mat<uword>& out, const Mat<eT>& X, const uword dim)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename get_pod_type<eT>::result T;
|
|
|
|
const uword X_n_rows = X.n_rows;
|
|
const uword X_n_cols = X.n_cols;
|
|
|
|
if(dim == 0)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 0");
|
|
|
|
out.set_size((X_n_rows > 0) ? 1 : 0, X_n_cols);
|
|
|
|
if(X_n_rows == 0) { return; }
|
|
|
|
uword* out_mem = out.memptr();
|
|
|
|
for(uword col=0; col < X_n_cols; ++col)
|
|
{
|
|
op_max::direct_max( X.colptr(col), X_n_rows, out_mem[col] );
|
|
}
|
|
}
|
|
else
|
|
if(dim == 1)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 1");
|
|
|
|
out.zeros(X_n_rows, (X_n_cols > 0) ? 1 : 0);
|
|
|
|
if(X_n_cols == 0) { return; }
|
|
|
|
uword* out_mem = out.memptr();
|
|
|
|
Col<T> tmp(X_n_rows, arma_nozeros_indicator());
|
|
|
|
T* tmp_mem = tmp.memptr();
|
|
|
|
if(is_cx<eT>::yes)
|
|
{
|
|
const eT* col_mem = X.colptr(0);
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
tmp_mem[row] = eop_aux::arma_abs(col_mem[row]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
arrayops::copy(tmp_mem, (T*)(X.colptr(0)), X_n_rows);
|
|
}
|
|
|
|
for(uword col=1; col < X_n_cols; ++col)
|
|
{
|
|
const eT* col_mem = X.colptr(col);
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
T& max_val = tmp_mem[row];
|
|
T col_val = (is_cx<eT>::yes) ? T(eop_aux::arma_abs(col_mem[row])) : T(access::tmp_real(col_mem[row]));
|
|
|
|
if(max_val < col_val)
|
|
{
|
|
max_val = col_val;
|
|
|
|
out_mem[row] = col;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
op_index_max::apply(Cube<uword>& out, const mtOpCube<uword, T1, op_index_max>& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const uword dim = in.aux_uword_a;
|
|
arma_debug_check( (dim > 2), "index_max(): parameter 'dim' must be 0 or 1 or 2" );
|
|
|
|
const unwrap_cube<T1> U(in.m);
|
|
|
|
if(U.is_alias(out) == false)
|
|
{
|
|
op_index_max::apply_noalias(out, U.M, dim);
|
|
}
|
|
else
|
|
{
|
|
Cube<uword> tmp;
|
|
|
|
op_index_max::apply_noalias(tmp, U.M, dim);
|
|
|
|
out.steal_mem(tmp);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
op_index_max::apply_noalias(Cube<uword>& out, const Cube<eT>& X, const uword dim, const typename arma_not_cx<eT>::result* junk)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
arma_ignore(junk);
|
|
|
|
const uword X_n_rows = X.n_rows;
|
|
const uword X_n_cols = X.n_cols;
|
|
const uword X_n_slices = X.n_slices;
|
|
|
|
if(dim == 0)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 0");
|
|
|
|
out.set_size((X_n_rows > 0) ? 1 : 0, X_n_cols, X_n_slices);
|
|
|
|
if(out.is_empty() || X.is_empty()) { return; }
|
|
|
|
for(uword slice=0; slice < X_n_slices; ++slice)
|
|
{
|
|
uword* out_mem = out.slice_memptr(slice);
|
|
|
|
for(uword col=0; col < X_n_cols; ++col)
|
|
{
|
|
op_max::direct_max( X.slice_colptr(slice,col), X_n_rows, out_mem[col] );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if(dim == 1)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 1");
|
|
|
|
out.zeros(X_n_rows, (X_n_cols > 0) ? 1 : 0, X_n_slices);
|
|
|
|
if(out.is_empty() || X.is_empty()) { return; }
|
|
|
|
Col<eT> tmp(X_n_rows, arma_nozeros_indicator());
|
|
|
|
eT* tmp_mem = tmp.memptr();
|
|
|
|
for(uword slice=0; slice < X_n_slices; ++slice)
|
|
{
|
|
uword* out_mem = out.slice_memptr(slice);
|
|
|
|
arrayops::copy(tmp_mem, X.slice_colptr(slice,0), X_n_rows);
|
|
|
|
for(uword col=1; col < X_n_cols; ++col)
|
|
{
|
|
const eT* col_mem = X.slice_colptr(slice,col);
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
const eT val = col_mem[row];
|
|
|
|
if(val > tmp_mem[row])
|
|
{
|
|
tmp_mem[row] = val;
|
|
out_mem[row] = col;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if(dim == 2)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 2");
|
|
|
|
out.zeros(X_n_rows, X_n_cols, (X_n_slices > 0) ? 1 : 0);
|
|
|
|
if(out.is_empty() || X.is_empty()) { return; }
|
|
|
|
Mat<eT> tmp(X.slice_memptr(0), X_n_rows, X_n_cols); // copy slice 0
|
|
|
|
eT* tmp_mem = tmp.memptr();
|
|
uword* out_mem = out.memptr();
|
|
|
|
const uword N = X.n_elem_slice;
|
|
|
|
for(uword slice=1; slice < X_n_slices; ++slice)
|
|
{
|
|
const eT* X_slice_mem = X.slice_memptr(slice);
|
|
|
|
for(uword i=0; i < N; ++i)
|
|
{
|
|
const eT val = X_slice_mem[i];
|
|
|
|
if(val > tmp_mem[i])
|
|
{
|
|
tmp_mem[i] = val;
|
|
out_mem[i] = slice;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
op_index_max::apply_noalias(Cube<uword>& out, const Cube<eT>& X, const uword dim, const typename arma_cx_only<eT>::result* junk)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
arma_ignore(junk);
|
|
|
|
typedef typename get_pod_type<eT>::result T;
|
|
|
|
const uword X_n_rows = X.n_rows;
|
|
const uword X_n_cols = X.n_cols;
|
|
const uword X_n_slices = X.n_slices;
|
|
|
|
if(dim == 0)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 0");
|
|
|
|
out.set_size((X_n_rows > 0) ? 1 : 0, X_n_cols, X_n_slices);
|
|
|
|
if(out.is_empty() || X.is_empty()) { return; }
|
|
|
|
for(uword slice=0; slice < X_n_slices; ++slice)
|
|
{
|
|
uword* out_mem = out.slice_memptr(slice);
|
|
|
|
for(uword col=0; col < X_n_cols; ++col)
|
|
{
|
|
op_max::direct_max( X.slice_colptr(slice,col), X_n_rows, out_mem[col] );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if(dim == 1)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 1");
|
|
|
|
out.zeros(X_n_rows, (X_n_cols > 0) ? 1 : 0, X_n_slices);
|
|
|
|
if(out.is_empty() || X.is_empty()) { return; }
|
|
|
|
Col<T> tmp(X_n_rows, arma_nozeros_indicator());
|
|
|
|
T* tmp_mem = tmp.memptr();
|
|
|
|
for(uword slice=0; slice < X_n_slices; ++slice)
|
|
{
|
|
uword* out_mem = out.slice_memptr(slice);
|
|
|
|
const eT* col0_mem = X.slice_colptr(slice,0);
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
tmp_mem[row] = std::abs( col0_mem[row] );
|
|
}
|
|
|
|
for(uword col=1; col < X_n_cols; ++col)
|
|
{
|
|
const eT* col_mem = X.slice_colptr(slice,col);
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
const T val = std::abs( col_mem[row] );
|
|
|
|
if(val > tmp_mem[row])
|
|
{
|
|
tmp_mem[row] = val;
|
|
out_mem[row] = col;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
if(dim == 2)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 2");
|
|
|
|
out.zeros(X_n_rows, X_n_cols, (X_n_slices > 0) ? 1 : 0);
|
|
|
|
if(out.is_empty() || X.is_empty()) { return; }
|
|
|
|
uword* out_mem = out.memptr();
|
|
|
|
Mat<T> tmp(X_n_rows, X_n_cols, arma_nozeros_indicator());
|
|
|
|
T* tmp_mem = tmp.memptr();
|
|
const eT* X_slice0_mem = X.slice_memptr(0);
|
|
|
|
const uword N = X.n_elem_slice;
|
|
|
|
for(uword i=0; i<N; ++i)
|
|
{
|
|
tmp_mem[i] = std::abs( X_slice0_mem[i] );
|
|
}
|
|
|
|
for(uword slice=1; slice < X_n_slices; ++slice)
|
|
{
|
|
const eT* X_slice_mem = X.slice_memptr(slice);
|
|
|
|
for(uword i=0; i < N; ++i)
|
|
{
|
|
const T val = std::abs( X_slice_mem[i] );
|
|
|
|
if(val > tmp_mem[i])
|
|
{
|
|
tmp_mem[i] = val;
|
|
out_mem[i] = slice;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
void
|
|
op_index_max::apply(Mat<uword>& out, const SpBase<typename T1::elem_type,T1>& expr, const uword dim)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
typedef typename T1::elem_type eT;
|
|
|
|
arma_debug_check( (dim > 1), "index_max(): parameter 'dim' must be 0 or 1" );
|
|
|
|
const unwrap_spmat<T1> U(expr.get_ref());
|
|
const SpMat<eT>& X = U.M;
|
|
|
|
const uword X_n_rows = X.n_rows;
|
|
const uword X_n_cols = X.n_cols;
|
|
|
|
if(dim == 0)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 0");
|
|
|
|
out.set_size((X_n_rows > 0) ? 1 : 0, X_n_cols);
|
|
|
|
if(X_n_rows == 0) { return; }
|
|
|
|
uword* out_mem = out.memptr();
|
|
|
|
for(uword col=0; col < X_n_cols; ++col)
|
|
{
|
|
out_mem[col] = X.col(col).index_max();
|
|
}
|
|
}
|
|
else
|
|
if(dim == 1)
|
|
{
|
|
arma_extra_debug_print("op_index_max::apply(): dim = 1");
|
|
|
|
out.set_size(X_n_rows, (X_n_cols > 0) ? 1 : 0);
|
|
|
|
if(X_n_cols == 0) { return; }
|
|
|
|
uword* out_mem = out.memptr();
|
|
|
|
const SpMat<eT> Xt = X.st();
|
|
|
|
for(uword row=0; row < X_n_rows; ++row)
|
|
{
|
|
out_mem[row] = Xt.col(row).index_max();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//! @}
|