[R] How to make a deep copy of a list?

[Giovanni Petris]

Hello everybody,

Does anybody know how to obtain a deep copy of a list?

The context is the following. I am passing a list to a function which, in turn, passes it to compiled C code via .Call. The problem is that the C code modifies elements of the list so that, after the R function returns, I end up with a modified version of the list argument. I believe passing to the function a deep copy of the list argument would solve my problem.

Thank you in advance for the help!

Giovanni

--
Giovanni Petris
Professor and Director of Statistics
Department of Mathematical Sciences
University of Arkansas
Fayetteville, AR 72701
USA



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