Thanks, It is what I was looking for. But now, I poorly understand environment conception. My initial C function in invoked from R (in some environment I suppose), how do I know this env, to provide it to eval()? Or, may I just make a clean env?
10.05.2013 00:13, Gabriel Becker пишет:
Matwey, There are a number of ways to do this, but it depends on what exactly you want. Do you want to execute a call to an actual R function from within C, or do you want to directly call one of R's internal C functions (which may work but is not future-safe unless it is part of the official API). If its the first, see Martin Morgan's post here: http://stackoverflow.com/questions/7457635/calling-r-function-from-c for more detail about the approach I believe Simon is referring to. As for the second, they are normal C functions, but I believe the consensus is that if they aren't part of the API you are on your own figuring out how they work (the source code is available for this of course). Hope that helps, ~G
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