R help - Feb 2010 - Accessing named elements of a vector

Dear R developers,

A great R feature is that elements of vectors, lists and dataframes can 
have names:

vx = c(a=1, b=2)
lx = list(a=1, b=2)

Accessing element "a" of vx: vx['a']
Accessing element "a" of lx: lx[['a']] or lx$a

Might be a matter of taste, but I like the $ very much. Unfortunately, 
vx$a is not
functional. Would it break existing compatibility if the $ would be 
allowed to
access elements of a vector, as well?

Best regards,

Matthias

You can convert this to list:

as.list(vx)$a

On Thu, Feb 25, 2010 at 6:53 PM, Matthias Gondan <matthias-gondan at
gmx.de> wrote:
> Dear R developers,
>
> A great R feature is that elements of vectors, lists and dataframes can
have
> names:
>
> vx = c(a=1, b=2)
> lx = list(a=1, b=2)
>
> Accessing element "a" of vx: vx['a']
> Accessing element "a" of lx: lx[['a']] or lx$a
>
> Might be a matter of taste, but I like the $ very much. Unfortunately, vx$a
> is not
> functional. Would it break existing compatibility if the $ would be allowed
> to
> access elements of a vector, as well?
>
> Best regards,
>
> Matthias
>
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> PLEASE do read the posting guide
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Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O