[R] Evaluation of functionals
Hadley Wickham
h.wickham at auckland.ac.nz
Mon Apr 5 09:44:29 CEST 2004
> Suppose I have
> f1 <- function(x) x
> f2 <- function(x) x^2
> funlist <- list(f1,f2)
> Then I would like to evaluate funlist such that when x is 10 I should
> get a list with 10 and 100.
How about
sapply(funlist, function(x) x(10))
?
> A related question is that of anonymous functions: how to evaluate
> function(x)x^2 on x<-10 without assigning the function to a name?
(function(x) x^2)(10)
Hadley
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