Hi all,

I was trying to set up an interface for using C functions in R. For this, my R file hello2.r is:

---------------------------------------------------------------------------------

hello2 <- function(n) {
.C("hello", as.integer(n))
}

hello2(3)
--------------------------------------------------------------------------------

and my hello.c file is:

------------------------------------------------------------------------------
#include <R.h>
void hello(int *n)
{
  int i;
  for(i=0; i < *n; i++) {
  Rprintf("Hello, world!\n");
  }
}
---------------------------------------------------------------------------

>From my windows command line, I execute:

> R CMD SHLIB hello.c

but I get the error message:
Error: syntax error in "R CMD". I am trying to look up information on the web page at: http://cran.r-project.org/doc/manuals/R-exts.html#dyn_002eload-and-dyn_002eunload

As I understand it, I need to load some files, but I don't understand which commands I need to execute to compile & execute my 'hello world' code.

I am running R 2.4.0 on Windows XP machine.

Any help would be highly appreciated.

thanks!


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