[R] Bug? using { as a function in lapply

[Witold Eryk Wolski]

Hi,

 > "{" <- function(x,y)y
 > "{"(1,9)
[1] 9
 > lapply(1:2, "{", 9)
[[1]]
[1] 9

[[2]]
[1] 9

 > R.version.string
[1] "R version 2.0.0, 2004-09-20"


/E

Gabor Grothendieck wrote:

>This seems like a bug to me.  Can someone verify this?  
>
>First we define a function f that returns its second argument and 
>lapply it to 1:2 using 9 as the second argument and all seems well.
>
>Note that "{" as a function does the same thing as f, as illustrated 
>with f(1,9) and "{"(1,9); however, when we attempt to use "{" in the 
>very same way we used f in lapply, we get an error message about ... 
>being used in an incorrect context, as shown.
>
>I am using R on windows with the version shown at the end.
>
>
>R> f <- function(x,y)y
>R> f(1,9)
>[1] 9
>R> lapply(1:2, f, 9)
>[[1]]
>[1] 9
>
>[[2]]
>[1] 9
> 
>R> "{"(1,9)
>[1] 9
>R> lapply(1:2, "{", 9)
>Error in lapply(1:2, "{", 9) : ... used in an incorrect context
>
>R> R.version.string
>[1] "R version 1.9.1, 2004-08-03"
>
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>  
>


-- 
Dipl. bio-chem. Witold Eryk Wolski         
MPI-Moleculare Genetic
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