Using functions and environments

Question

Following the recent discussions here (e.g. 1, 2 ) I am now using environments in some of my code. My question is, how do I create functions that modify environments accordi

Answer 1

 y <- new.env()
 with(y, x <- 1)
 f <- function(env,z) {
    with(env, x+z)
 }
 f(y,z=1)

mind the parentheses:) The following will work:

with(env, x)+z