[Rd] Re: [R] Unexpected behaviour of identical (PR#6799)
p.dalgaard at biostat.ku.dk
p.dalgaard at biostat.ku.dk
Tue Apr 20 13:42:44 CEST 2004
"Swinton, Jonathan" <Jonathan.Swinton at astrazeneca.com> writes:
> # works as expected
> > ac <- c('A','B');
> > identical(ac,ac[1:2])
> [1] TRUE
>
> #but
> > af <- factor(ac)
> > identical(af,af[1:2])
> [1] FALSE
>
> Any opinions?
Did a cross-check with Splus and it doesn't do that , so I think it
qualifies as a bug. Shouldn't be too hard to fix (might lose a little
efficiencty though).
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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