Re: [R] I really don't understand functions in R :-)

From: Kevin E. Thorpe <kevin.thorpe_at_utoronto.ca>
Date: Fri 20 Oct 2006 - 16:57:07 GMT

Is this what you want?

> f <- function(x,n=3) x^n
> f(2)
[1] 8
> n <- 2
> f(2)

[1] 8
> f(2,2)

[1] 4

Alberto Monteiro wrote:
> An example:
>
> n <- 3
> f <- function(x) x^n
> f(2)
> # [1] 8
> n <- 2
> f(2)
> # [1] 4
> f
> # function(x) x^n
>
> Ok, I know this is trivial, because function f is foverer bound
> to the variable n. But how can I _fix_ n when I define _f_, so
> that changing _n_ won't change the function f?
>
> Alberto Monteiro

-- 
Kevin E. Thorpe
Biostatistician/Trialist, Knowledge Translation Program
Assistant Professor, Department of Public Health Sciences
Faculty of Medicine, University of Toronto
email: kevin.thorpe@utoronto.ca  Tel: 416.946.8081  Fax: 416.946.3297

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Received on Sat Oct 21 12:31:13 2006

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