[Rd] Field initialization order bug?

Peter Dalgaard P.Dalgaard at biostat.ku.dk
Tue Jul 17 14:34:02 CEST 2007


Prof Brian Ripley wrote:
> On Mon, 16 Jul 2007, Daniel Wilhelm wrote:
>
>   
>> I believe that I may have found a bug in R. The top code sample gives
>>     
>
> You have 'merely' found a bug in your understanding.  What type did you 
> expect 'a' to be?  If you expected a list, that is not what happens in the 
> first example, and you need
>
> a <- list()
>
> or, better,
>
> a <- vector("list", 2)
>
>   
To be precise, you need

a <- vector("list", 2) ; names(a) <- c("field1", "field2")

or you end up with a 4-element list.

-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)                  FAX: (+45) 35327907



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