[R] Extract information from the names of a list within lapply

Henrique Dallazuanna wwwhsd at gmail.com
Fri Apr 15 20:27:38 CEST 2011


Try this:

lapply(mtcars, function(.)names(mtcars)[match.call()[[2]][[3]]])

On Fri, Apr 15, 2011 at 3:14 PM, Jun Shen <jun.shen.ut at gmail.com> wrote:
> Dear list,
>
> I want to loop over a list through lapply and at the same time I want to
> extract some information from the names of the list elements. lapply does
> not seem to carry the names. Is there anyway to access the names of a list
> within lapply? Thanks.
>
> Jun
>
>        [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O



More information about the R-help mailing list