Mercurial > octave-nkf
view liboctave/numeric/base-qr.h @ 18883:aa9ca67f09fb
make all permutation matrices column permutations (bug #42418)
Making all permutation matrices column permutations allows permutation
matrices to be iterated over in column-major order just like any other
matrix.
* PermMatrix.h, PermMatrix.cc (PermMatrix::_colp): Delete member
variable and all uses.
(PermMatrix::transpose): Create new matrix with internal
representation flipped.
(PermMatrix::pos_power): New function.
(PermMatrix::eye): Call the one-argument constructor which already
defaults to the identity matrix.
(PermMatrix::is_col_perm): Unconditionally return true.
(PermMatrix::is_row_perm): Unconditionally return false.
(PermMatrix::data, PermMatrix::fortran_vec, PermMatrix::pvec): Delete.
(PermMatrix::col_perm_vec): New function.
* lu.cc: New test.
* base-lu.cc (base_lu<lu_type>::base_lu): Call transpose in ipvt
initialization.
* find.cc, kron.cc, pr-output.cc, ov-perm.cc, PermMatrix.cc,
PermMatrix.h, Sparse.cc, dMatrix.cc, fMatrix.cc, CmplxQRP.cc,
base-lu.cc, dbleQRP.cc, fCmplxQRP.cc, floatQRP.cc,
Sparse-perm-op-defs.h, mx-op-defs.h: Adapt to PermMatrix changes.
author | David Spies <dnspies@gmail.com> |
---|---|
date | Wed, 18 Jun 2014 19:38:40 -0600 |
parents | 49a5a4be04a1 |
children | 4197fc428c7d |
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/* Copyright (C) 2009-2013 Jaroslav Hajek 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 <http://www.gnu.org/licenses/>. */ #if !defined (octave_base_qr_h) #define octave_base_qr_h 1 #include "MArray.h" #include "dColVector.h" #include "PermMatrix.h" enum qr_type_t { qr_type_std, qr_type_raw, qr_type_economy }; template <class qr_type> class base_qr { public: typedef typename qr_type::element_type qr_elt_type; base_qr (void) : q (), r () { } base_qr (const qr_type& q, const qr_type& r); base_qr (const base_qr& a) : q (a.q), r (a.r) { } base_qr& operator = (const base_qr& a) { if (this != &a) { q = a.q; r = a.r; } return *this; } virtual ~base_qr (void) { } qr_type Q (void) const { return q; } qr_type R (void) const { return r; } qr_type_t get_type (void) const; bool regular (void) const; protected: qr_type q; qr_type r; }; #ifndef HAVE_QRUPDATE void warn_qrupdate_once (void); #endif #endif