cbind is not generic as claimed, omits labels where S has them (PR#239)
Peter Dalgaard BSA
p.dalgaard@biostat.ku.dk
06 Aug 1999 00:08:05 +0200
Ross Ihaka <ihaka@stat.auckland.ac.nz> writes:
> I can see what the problem is - we don't have the generic dispatch
> mechanism in place. I will add it.
>
> I think that the special casing of data frames is needed because this
> appears to be the (undocumented) S behaviour. A data frame anywhere in
> the argument list causes the result to be a data frame.
I played around with this earlier today. There's nothing special about
dataframes, S does the same with any classed object. I.e.
class(b)<-"my"
cbind.my<-function(...)match.call()
cbind(a,b)
will dispatch cbind.my
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907
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