[R] class definition

[Uwe Ligges]

On 01.10.2011 13:21, Omphalodes Verna wrote:
> Hi everybody!
>
> I have a matrix of class "myClass", for example:
>
> myMat<- matrix(rnorm(30), nrow = 6)
> attr(myMat, "class")<- "myClass"
> class(myMat)
>
> When I extract part of ''myMat'', the corresponding class ''myClass'' unfortunately disappear:
>
> myMat.p<- myMat[,1:2]
> class(myMat.p)
>
> Please for any advice / suggestions, how define class, that during an operation does not disappear.

You will need a "[" method for your class.

Uwe Ligges



>
> Thanks, OV
>
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>
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