[Rd] Help: Where can I find the code for 'C_Cdqrls'?
Uwe Ligges
ligges at statistik.tu-dortmund.de
Tue Apr 23 14:55:12 CEST 2013
On 23.04.2013 09:35, 赵自强 wrote:
> Dear all,
>
> Iâ€™m not sure if it is O.K. to ask this question here.
>
> But where can I find the code for the function â€˜C_Cdqrlsâ€™ which is called by the R function â€˜lsfitâ€˜.
Look into the R sources:
grepping for dqrls shows the following relevant files:
./src/appl/dqrls.f: subroutine
dqrls(x,n,p,y,ny,tol,b,rsd,qty,k,jpvt,qraux,work)
./src/include/R_ext/Applic.h:void F77_NAME(dqrls)(double *x, int *n, int
*p, double *y, int *ny,
./src/library/stats/src/init.c: CALLDEF(Cdqrls, 3),
./src/library/stats/src/lm.c: z <- .Fortran("dqrls",
./src/library/stats/src/lm.c:SEXP Cdqrls(SEXP x, SEXP y, SEXP tol)
./src/library/stats/src/lm.c: F77_CALL(dqrls)(REAL(qr), &n, &p,
REAL(y), &ny, &rtol,
./src/library/stats/src/statsR.h:SEXP Cdqrls(SEXP x, SEXP y, SEXP tol);
Best,
Uwe Ligges
>
> Thank you all.
>
> Sorry for being naÃ¯ve if so.
>
> --------------------
>
> Ziqiang Zhao
>
> 2013-04-23
>
>
>
>
> [[alternative HTML version deleted]]
>
>
>
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