R help - Dec 2010 - finding and opening C source called from R functions.

Hi,

As will soon be very clear I'm an R novice.  I'm trying to better
understand the ks.test function in the stats package.  When I look at the source
code there are several calls to C functions (for example .C("pkstwo",
is.integer(length(x[IND])), p=as.double(x[IND]), as.double(tol), PACKAGE =
"stats)$P).  I'm wondering if there is a way to view the source code
for the underlying C functions?  I googled a post which said to open ks.c to see
the source code but I can't find that file anywhere on my hard drive or on
the web.  Any suggestions would be greatly appreciated.

Thanks in advance,

Ben

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On Mon, Dec 20, 2010 at 12:48 PM, Chiquoine, Ben <BChiquoine at tiff.org>
wrote:
> Hi,
>
> As will soon be very clear I'm an R novice. ?I'm trying to better
understand the ks.test function in the stats package. ?When I look at the source
code there are several calls to C functions (for example .C("pkstwo",
is.integer(length(x[IND])), p=as.double(x[IND]), as.double(tol), PACKAGE =
"stats)$P). ?I'm wondering if there is a way to view the source code
for the underlying C functions? ?I googled a post which said to open ks.c to see
the source code but I can't find that file anywhere on my hard drive or on
the web. ?Any suggestions would be greatly appreciated.
Go to cran.r-project.org, find the package stats, download the tar.gz
bundle, unpack it (on a linux command line, you can type tar -xvzf
stats*.tar.gz), then navigate to the directory stats/src and look at
the source code in the directory.