Perfect - thanks!
Hadley
On Mon, Nov 23, 2009 at 5:22 PM, Gabor Grothendieck
wrote:
> See ?.subset
>
> On Mon, Nov 23, 2009 at 4:00 PM, Hadley Wickham wrote:
>> Hi all,
>>
>> How can I call the default method of a S3 object defined by a
>> primitive method? i.e. in the following example, how d
See ?.subset
On Mon, Nov 23, 2009 at 4:00 PM, Hadley Wickham wrote:
> Hi all,
>
> How can I call the default method of a S3 object defined by a
> primitive method? i.e. in the following example, how do I call the
> default [ method instead of the one I defined for the class.
>
> new_a <- functi
>> new_a <- function(x) structure(x, class = "a")
>>
>> a <- new_a(1:5)
>>
>> "[.a" <- function(x, i, j, ...) {
>> new_a(x[, j, ])
>
> What about
> new_a(unclass(x)[, j,])
That's what I'm currently using, but I'm concerned about the
performance implications - won't that create a copy of x?
Hadle
On Nov 23, 2009, at 16:00 , Hadley Wickham wrote:
Hi all,
How can I call the default method of a S3 object defined by a
primitive method? i.e. in the following example, how do I call the
default [ method instead of the one I defined for the class.
new_a <- function(x) structure(x, class = "
Hi all,
How can I call the default method of a S3 object defined by a
primitive method? i.e. in the following example, how do I call the
default [ method instead of the one I defined for the class.
new_a <- function(x) structure(x, class = "a")
a <- new_a(1:5)
"[.a" <- function(x, i, j, ...)
