[R] obtaining the name of a named list

[Uwe Ligges]

Ned wrote:

> I have a list d, in which the names of each elements are single 
> characters, and the actual elements are bit sequences representing those 
> characters. If I type d[1], I get the name and the bit sequence. If I 
> type d[[1]], I get only the bit sequence.

d[1] returns a list of length 1, while d[[1]] returns only the element.

> What I want is some way to be able to get the name of the element, 
> preferably by specifying an index into the array.
> 
> e.g.
> 
>  > d
>       A       B           C
> "00000" "00001"  "0001"
> 
> I want some way of saying "give me the name for element number 2" and it 
> should return B.

names(B)[2]

Uwe Ligges

BTW: If all list elements are character of length 1, why are you not 
using a character vector instead?



> 
> cheers,
> 
> Ned
> 
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