[R] Function does not see variables outside the function

[Carl Witthoft]

Why would you want to impose this restriction?  Perhaps if you explain what
you are trying to do, we can suggest approaches that will satisfy your
specific needs.
(note- one can always redefine whatever variables are to be "excluded." E.g.
to keep the body of a function from referring to 'foo' in the calling
environment, just add the line 'foo<-NA' inside the function)


Zhong-Yuan Zhang wrote
>      In MATLAB, functions cannot see variables outside the
> 
> functions.  However, in R, the functions can do that. Is there
> 
> any settings that can disable this ability of functions?
> 
>     
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