acos acosh adaptsimp asin asinh atan atan2 atanh betafn BFGS cbind cbrt ceil chol_solve chol_solve cholesky copy copy_recycle copysign cos cosh crossprod dbeta dbinom dchisq det dexp df dgamma diag dlnorm dlogis dnbinom dnorm dpois dt dt1 dunif dweibull eigen epsilon erf erfc exp expm1 eye fabs factorial floor fmod for_each_ij_set gammafn gaxpy gradfdif gradfdifls hesscdif hypot intsimp inv inv invpd invpd j0 j1 jacfdif jn kronecker kurtosis kurtosisc ldexp lgamma linesearch1 linesearch2 lnbetafn lndbeta1 lndmvn lndnorm lndt1 lnfactorial lngammafn log log10 log1p logb lu_decomp lu_solve lu_solve matrix_order matrix_style max maxc maxind maxindc mean meanc median medianc min minc minind minindc mode modec nls_broyden ones operator! operator!= operator% operator& operator* operator* operator+ operator- operator- operator/ operator< operator<< operator<= operator== operator> operator>= operator>> operator^ operator| order pbeta pbinom pchisq pexp pf pgamma plnorm plogis pnbinom pnorm pow ppois prod prodc pt punif pweibull qnorm1 qr_decomp qr_solve qr_solve rbind rint row_interchange sd sd sdc selif seqa sgn sin sinh skew skewc sort sortc sqrt sum sumc svd t tan tanh unique var var varc vech xpnd y0 y1 yn zoom

Matrix scythe::qr_solve ( const Matrix<> &  A, const Matrix<> &  b, const QRdecomp &  QR  ) [inline] Solve given a QR decomposition. This function solves the system of equations using the results of a QR decomposition. This function requires the actual QR decomposition to be performed ahead of time; by qr_decomp() for example. This function is intended for repeatedly solving systems of equations based on A. That is A stays constant while b varies. Note: This function requires BLAS/LAPACK functionality and is only available on machines that provide these libraries. Make sure you enable the SCYTHE_LAPACK preprocessor flag if you wish to use this function. Furthermore, note that this function takes and returns only column-major concrete matrices. Future versions of Scythe will provide a native C++ implementation of this function with support for general matrix templates. Parameters: A A Matrix to decompose. b A Matrix with as many rows as A. QR A QRdecomp object containing the result of the QR decomposition of A. See also: QRdecomp qr_solve (const Matrix<>& A, const Matrix<>& b) qr_decomp (const Matrix<>& A) lu_solve (const Matrix<T,PO1,PS1>&, const Matrix<T,PO2,PS2>&, const Matrix<T,PO3,PS3>&, const Matrix<T,PO4,PS4>&, const Matrix<unsigned int, PO5, PS5>&) lu_solve (Matrix<T,PO1,PS1>, const Matrix<T,PO2,PS2>&) chol_solve(const Matrix<T,PO1,PS1> &, const Matrix<T,PO2,PS2> &) chol_solve(const Matrix<T,PO1,PS1> &, const Matrix<T,PO2,PS2> &, const Matrix<T,PO3,PS3> &) Exceptions: scythe_null_error (Level 1) scythe_conformation_error (Level 1) scythe_type_error (Level 1) scythe_lapack_internal_error (Level 1) References scythe::Matrix_base< ORDER, STYLE >::cols(), scythe::Matrix< T_type, ORDER, STYLE >::getArray(), scythe::Matrix_base< ORDER, STYLE >::isNull(), scythe::Matrix_base< ORDER, STYLE >::rows(), SCYTHE_CHECK_10, and scythe::Matrix_base< ORDER, STYLE >::size().