I learnt that functions can be handled as objects, the same way the variables
are. So, the following is perfectly valid:
> f = function(a, b) {
+ print(a)
+ print(b)
+ }
>
> f1 = function(foo) {
+ foo(1,2)
+ }
>
> f1(f)
[1] 1
[1] 2
>
I also know that operators are functions, so, I can call:
> '+'(1,2)
[1] 3
>
However, when I want to pass the '+' function to the previous f1 function, it
doesn't work:
> f1('+')
Error en f1("+") : no se pudo encontrar la función "foo"
>
(Error in f1("+") : the function "foo" cannot be found)
Do you have any comments on this?
Thanks,
--Sergio.
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