Functions | |
template<typename T1 > | |
void | qr (Mat< typename T1::elem_type > &Q, Mat< typename T1::elem_type > &R, const Base< typename T1::elem_type, T1 > &X) |
QR decomposition. |
void qr | ( | Mat< typename T1::elem_type > & | Q, | |
Mat< typename T1::elem_type > & | R, | |||
const Base< typename T1::elem_type, T1 > & | X | |||
) | [inline] |
QR decomposition.
Definition at line 24 of file fn_qr.hpp.
References arma_print(), Base< elem_type, derived >::get_ref(), and auxlib::qr().
00025 { 00026 arma_extra_debug_sigprint(); 00027 00028 typedef typename T1::elem_type eT; 00029 00030 arma_debug_check( (&Q == &R), "qr(): Q and R are the same object"); 00031 00032 const unwrap_check<T1> tmp1(X.get_ref(), Q); 00033 const Mat<eT>& A = tmp1.M; 00034 00035 const unwrap_check< Mat<eT> > tmp2(A, R); 00036 const Mat<eT>& B = tmp2.M; 00037 00038 const bool ok = auxlib::qr(Q, R, B); 00039 00040 if(ok == false) 00041 { 00042 arma_print("qr(): matrix factorisation failed"); 00043 } 00044 00045 }