Function Composition in R (and high level functions)

Question

Is there something like a function composition in R?

I think in haskell it\'s somthing like \"(.)\" and in agda it\'s the ring operator.

Also, I find litte infor

Answer 1

There is now a compose function in the purrr library. By default composition is made from right to left, as in Haskell, but it can be reversed with the .dir param:

library(purrr)
f = function(x) x+1
g = function(x) x*3

> compose(g,f)(1)
[1] 6
> compose(f,g, .dir="forward")(1)
[1] 6