Mercurial > octave
view liboctave/numeric/aepbalance.h @ 32060:1203a2d81a42
Add BIST tests for Matlab compatibility for functions which accept negative dimensions.
* data.cc (Fones, Finf, Feps, Feye): Add BIST test for negative dimensions.
* rand.cc (Frand): Add BIST test for negative dimensions.
* ov-cell.cc (Fcell): Add BIST test for negative dimensions.
author | Rik <rik@octave.org> |
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date | Wed, 26 Apr 2023 16:26:32 -0700 |
parents | 21f9b34eb893 |
children | ae4e19c0a2b1 2e484f9f1f18 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1994-2023 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // This file is part of Octave. // // Octave is free software: you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Octave is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Octave; see the file COPYING. If not, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if ! defined (octave_aepbalance_h) #define octave_aepbalance_h 1 #include "octave-config.h" #include <algorithm> OCTAVE_BEGIN_NAMESPACE(octave) OCTAVE_BEGIN_NAMESPACE(math) template <typename MT> class aepbalance { public: typedef typename MT::real_column_vector_type VT; aepbalance () : m_balanced_mat (), m_scale (), m_ilo (), m_ihi (), m_job () { } OCTAVE_API aepbalance (const MT& a, bool noperm = false, bool noscal = false); aepbalance (const aepbalance& a) : m_balanced_mat (a.m_balanced_mat), m_scale (a.m_scale), m_ilo(a.m_ilo), m_ihi(a.m_ihi), m_job(a.m_job) { } aepbalance& operator = (const aepbalance& a) { if (this != &a) { m_balanced_mat = a.m_balanced_mat; m_scale = a.m_scale; m_ilo = a.m_ilo; m_ihi = a.m_ihi; m_job = a.m_job; } return *this; } virtual ~aepbalance () = default; OCTAVE_API MT balancing_matrix () const; MT balanced_matrix () const { return m_balanced_mat; } VT permuting_vector () const { octave_idx_type n = m_balanced_mat.rows (); VT pv (n); for (octave_idx_type i = 0; i < n; i++) pv(i) = i+1; for (octave_idx_type i = n-1; i >= m_ihi; i--) { octave_idx_type j = m_scale(i) - 1; std::swap (pv(i), pv(j)); } for (octave_idx_type i = 0; i < m_ilo-1; i++) { octave_idx_type j = m_scale(i) - 1; std::swap (pv(i), pv(j)); } return pv; } VT scaling_vector () const { octave_idx_type n = m_balanced_mat.rows (); VT scv (n); for (octave_idx_type i = 0; i < m_ilo-1; i++) scv(i) = 1; for (octave_idx_type i = m_ilo-1; i < m_ihi; i++) scv(i) = m_scale(i); for (octave_idx_type i = m_ihi; i < n; i++) scv(i) = 1; return scv; } protected: MT m_balanced_mat; VT m_scale; octave_idx_type m_ilo; octave_idx_type m_ihi; char m_job; }; OCTAVE_END_NAMESPACE(math) OCTAVE_END_NAMESPACE(octave) #endif