On Mon, 14 Mar 2005, tianyue wrote:
Hi,
I'm trying to find the corresponding Fortran77 subroutines for R function pt(). I tried some Fortran77 subroutines to compute the t distribution function. But none of them are as good as R function pt(). Does anyone can give me some information about it?
There is no Fortran subroutine (although some of the C functions are translations of Fortran). The C code is in any R source distribution, in src/nmath/pt.c. It also calls src/nmath/pbeta.c. The comments in the code say where the algorithms came from.
-thomas
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