Re: dimnames and subscripting (PR#293)

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Subject: Re: dimnames and subscripting (PR#293)
From: Peter Dalgaard BSA (p.dalgaard@biostat.ku.dk)
Date: Fri 08 Oct 1999 - 20:32:10 EST


Message-ID: <x27lkycfdh.fsf@blueberry.kubism.ku.dk>

J.C.Rougier@durham.ac.uk writes:

> I am not sure that this is a bug, but it was unexpected -- of course my
> expectations are fallible, eg column ordering in model.matrix()! When an
> array is subscripted the names of the dimnames list are lost (v 64.1).
>
> fred <- array(1:12, 2:4, list(A = letters[1:2], B = letters[3:5], C =
> letters[6:9]))
>
> dimnames(fred)
> dimnames(fred[1, , ])
> dimnames(fred[1, , , drop=FALSE])
>
> In the first case I expected names B and C to be preserved; in the second
> case, not quite so clear-cut, I also expected B and C to be preserved.

Yep, it's a bug. Same as reported as PR#257 by Andreas W. Still
pending investigation...

-- 
   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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