On 10/10/06, Alberto Monteiro <[EMAIL PROTECTED]> wrote: > The following code works fine: > > # g is the function that returns the square of a number > g <- function(y) y^2 > > # f1 is a function that takes one function > # as argument, and returns another function > f1 <- function(f) function(x) f(x+1) - f(x) > > # h(x) is g(x+1) - g(x) or 2x + 1 > h <- f1(g) > > # h(1) = 3 > # h(2) = 5 > # h(3) = 7 > > So far, so good. But why: > > h > > shows: > > function(x) f(x+1)-f(x) > <environment: 0264BE84>
Presumably, 'f' takes the value 'g' in this environment, and indeed > environment(h)$f function(y) y^2 > I don't get it. h should show function(x) g(x+1)-g(x) > or something like that. Not that I know much about functions and environments, but printing is ultimately a matter of aesthetics. What do you think "should" happen when h <- f1(function(y) y^2) and you try to print h ? -Deepayan ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
