Re: [R] Data.frame query

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Subject: Re: [R] Data.frame query
From: Peter Dalgaard BSA (p.dalgaard@biostat.ku.dk)
Date: Mon 26 Jun 2000 - 21:27:59 EST 

Message-ID: <x2hfag3cn4.fsf@blueberry.kubism.ku.dk>

r.e.darnell@ncl.ac.uk (R.E. Darnell) writes:

> I think I have a data.frame called "statlab".
>
> > is.data.frame(statlab)
> [1] TRUE
>
> and I can perform summary, dim, ...
>
> but when I try
>
> > attach(statlab)
> Error in attach(statlab) : attach only works for lists and data frames
...
> This has got to be embarrassingly simple.
>
> Any one like to point out my error?

Well, it's not simple to point out from the clues given. Your R
version is a tad old, but I wouldn't expect that to be the problem.
The best guess is that statlab is not really a dataframe, but
something else with a "data.frame" class attached to it. Looking at
the output of str(statlab) could be informative. 

-- 
   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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