Hi,
you are feeding lapply "i" as an optional argument, which is passed to
fn() and causes an error. Just use lapply(1:4, fn), or better yet,
sapply,
> fn <- function(i) return(i^2)
> sapply(1:4, fn)
[1] 1 4 9 16
Hope this helps,
baptiste
On 20 Nov 2008, at 16:31, megh wrote:
I have written following codes, with intention to get a list with
values
1,2,9,16 :
fn <- function(i) return(i^2)
lapply(1:4, fn, i)
However I got following error :
Error in FUN(1:4[[1L]], ...) : unused argument(s) (1)
Can anyone please tell me what will be the correct code here?
Regards,
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_____________________________
Baptiste Auguié
School of Physics
University of Exeter
Stocker Road,
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EX4 4QL, UK
Phone: +44 1392 264187
http://newton.ex.ac.uk/research/emag
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