[R] Evaluation of variable assigned to a function name

Uwe Ligges ligges at statistik.tu-dortmund.de
Mon Jan 10 14:11:48 CET 2011

Wel, just let the user give the function in form of an argument, say 
"foo", and use your code so that

bar <- function(x, ....., foo){
    if(missing(foo)) foo <- Namespace::my.func

but perhaps I misunderstood your question.

Uwe Ligges

On 10.01.2011 13:47, carol white wrote:
> Hi,
> I have defined a function (my.func) which is used as parameter (f) of another
> function. As I want to give the user the possibility to define his own function
> instead of my.func, how can I find out if in other functions, the parameter f
> has the my.func value (if the user has defined a new function or not)?
> Moreover, I think I should impose to the user to use another function name than
> my.func for this (?). Or a boolean variable is better to be used to indicate if
> my function (my.func) or user-defined function is used?
> Thanks
> Carol
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