[R] Redefine `[` for S3 class

[Bert Gunter]

Luca:

Well, start by using the correct syntax -- you've misplaced your quotes.

Then look at existing code, e.g.

base:::"[.factor"

A little effort on your part obviates the need to post here.

Cheers,
Bert


Bert Gunter
Genentech Nonclinical Biostatistics
(650) 467-7374

"Data is not information. Information is not knowledge. And knowledge
is certainly not wisdom."
H. Gilbert Welch




On Thu, May 29, 2014 at 1:04 AM, Luca Cerone <luca.cerone at gmail.com> wrote:
> Dear all,
> I have defined my own class "myclass" using S3 class styles.
> A myclass objects is just a matrix with some attribute attached.
> When I subset my myclass the resulting matrix (or vector) doesn't
> have the attributes attached.
>
> I would like to redefine the `[` function for myclass objects (it has to behave
> the same as the standard function but just attach the attributes to the subset).
>
> I have tried to define the method:
>
> `['.myclass <- function(X,... ) { etc...}
>
> but it doesn't work ( I realized after that `[` is a .Primitive).
> How can I define this method for my own class?
>
> Thanks a lot in advance for the help,
>
> Cheers,
> Luca
>
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