[R] random seed

[Kosuke Imai]

Hi,
  I have a R wrapper function that calls my C code via .C(). In my C code,
I have been calling GetRNGstate() (and PutRNGstate()) once at the
beginning (and the end) of the code. However, if I generate a random
number within the R wrapper function (say via runif()), then my C code
produces the exactly same numbers. If I don't generate a random number 
within the wrapper, it works fine. I wonder if there is something I need 
to do in order to prevent this problem. Any help would be appreciated.
Best,
Kosuke

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