fn_qr.hpp

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00001 // Copyright (C) 2009 NICTA
00002 // 
00003 // Authors:
00004 // - Conrad Sanderson (conradsand at ieee dot org)
00005 // 
00006 // This file is part of the Armadillo C++ library.
00007 // It is provided without any warranty of fitness
00008 // for any purpose. You can redistribute this file
00009 // and/or modify it under the terms of the GNU
00010 // Lesser General Public License (LGPL) as published
00011 // by the Free Software Foundation, either version 3
00012 // of the License or (at your option) any later version.
00013 // (see http://www.opensource.org/licenses for more info)
00014 
00015 
00016 //! \addtogroup fn_qr
00017 //! @{
00018 
00019 
00020 //! QR decomposition
00021 template<typename eT, typename T1>
00022 inline
00023 void
00024 qr(Mat<eT>& Q, Mat<eT>& R, const Base<eT,T1>& X)
00025   {
00026   arma_extra_debug_sigprint();
00027   
00028   const unwrap<T1> tmp(X.get_ref());
00029 
00030   const bool ok = auxlib::qr(Q, R, tmp.M);
00031   if(ok == false)
00032     {
00033     arma_print("qr(): matrix factorisation failed");
00034     }
00035   
00036   }
00037 
00038 
00039 //! @}