136 lines
3.5 KiB
C++
136 lines
3.5 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 fn_balance
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//! @{
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template<typename T1>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
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balance(Col<typename T1::pod_type>& S, Col<uword>& P, Mat<typename T1::elem_type>& B, const Base<typename T1::elem_type,T1>& A, const char* method = "both")
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{
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arma_debug_sigprint();
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arma_conform_check( (void_ptr(&S) == void_ptr(&B)), "eig_gen(): parameter 'S' is an alias of parameter 'B'" );
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const char sig = (method != nullptr) ? method[0] : char(0);
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if( (sig != 'b') && (sig != 's') && (sig != 'p') ) { arma_stop_logic_error("balance(): unsupported method"); }
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const bool do_scale = (sig == 'b') || (sig == 's');
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const bool do_perm = (sig == 'b') || (sig == 'p');
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const bool calc_SP = true;
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B = A.get_ref();
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if(B.is_square() == false)
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{
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B.soft_reset();
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arma_stop_logic_error("balance(): given matrix must be square sized");
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return false;
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}
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const bool status = auxlib::balance(S, P, B, calc_SP, do_scale, do_perm);
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if(status == false)
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{
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S.soft_reset();
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P.soft_reset();
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B.soft_reset();
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arma_warn(3, "balance(): transformation failed");
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}
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return status;
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}
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template<typename T1>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
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balance(Mat<typename T1::elem_type>& B, const Base<typename T1::elem_type,T1>& A, const char* method = "both")
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{
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arma_debug_sigprint();
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typedef typename T1::pod_type T;
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const char sig = (method != nullptr) ? method[0] : char(0);
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if( (sig != 'b') && (sig != 's') && (sig != 'p') ) { arma_stop_logic_error("balance(): unsupported method"); }
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const bool do_scale = (sig == 'b') || (sig == 's');
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const bool do_perm = (sig == 'b') || (sig == 'p');
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const bool calc_SP = false;
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B = A.get_ref();
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if(B.is_square() == false)
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{
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B.soft_reset();
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arma_stop_logic_error("balance(): given matrix must be square sized");
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return false;
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}
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Col<T> S;
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Col<uword> P;
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const bool status = auxlib::balance(S, P, B, calc_SP, do_scale, do_perm);
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if(status == false)
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{
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B.soft_reset();
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arma_warn(3, "balance(): transformation failed");
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}
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return status;
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}
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template<typename T1>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, Mat<typename T1::elem_type> >::result
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balance(const Base<typename T1::elem_type,T1>& A, const char* method = "both")
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{
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arma_debug_sigprint();
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typedef typename T1::elem_type eT;
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Mat<eT> B;
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const bool status = balance(B, A, method);
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if(status == false) { arma_stop_runtime_error("balance(): transformation failed"); }
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return B;
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}
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//! @}
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