Kenneth Roy Cabrera Torres
2009-Oct-30 07:41 UTC
[R] Names of list members in a plot using sapply
Hi R users:
I got this code to generate a graphic for each member of a lists.
list1<-list(A=data.frame(x=c(1,2),y=c(5,6)),B=data.frame(x=c(8,9),y=c(12,6)))
names1<-names(list1)
sapply(1:length(list1),function(i)
with(list1[[i]],plot(x,y,type="l",main=paste("Graphic
of",names1[i]))))
Is there a more elegant solution for not to use two separate lists?
I would like to just use
sapply(list1, somePlotfunction)
and plot for each graphic in the title have the name of the member of
the list.
Thank you for your help.
Kenneth
sapply(names(list1), function(.data.){
with(list1[[.data.]], plot(x, y, type='l', main=paste("Graphic
of", .data)))
})
On Fri, Oct 30, 2009 at 3:41 AM, Kenneth Roy Cabrera Torres
<krcabrer at une.net.co> wrote:> Hi R users:
>
> I got this code to generate a graphic for each member of a lists.
>
>
list1<-list(A=data.frame(x=c(1,2),y=c(5,6)),B=data.frame(x=c(8,9),y=c(12,6)))
> names1<-names(list1)
> sapply(1:length(list1),function(i)
> with(list1[[i]],plot(x,y,type="l",main=paste("Graphic
of",names1[i]))))
>
> Is there a more elegant solution for not to use two separate lists?
>
> I would like to just use
>
> sapply(list1, somePlotfunction)
>
> and plot for each graphic in the title have the name of the member of
> the list.
>
> Thank you for your help.
>
> Kenneth
>
> ______________________________________________
> 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.
>
--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
You could lapply over the names:
junk <- lapply(names(list1), function(nm)
with(list1[[nm]], plot(x, y, type = "l", main =
paste("Graphic
of", nm))))
which is a slight improvement though that still involves dealing with
a list and its names separately.
On Fri, Oct 30, 2009 at 3:41 AM, Kenneth Roy Cabrera Torres
<krcabrer at une.net.co> wrote:> Hi R users:
>
> I got this code to generate a graphic for each member of a lists.
>
>
list1<-list(A=data.frame(x=c(1,2),y=c(5,6)),B=data.frame(x=c(8,9),y=c(12,6)))
> names1<-names(list1)
> sapply(1:length(list1),function(i)
> with(list1[[i]],plot(x,y,type="l",main=paste("Graphic
of",names1[i]))))
>
> Is there a more elegant solution for not to use two separate lists?
>
> I would like to just use
>
> sapply(list1, somePlotfunction)
>
> and plot for each graphic in the title have the name of the member of
> the list.
>
> Thank you for your help.
>
> Kenneth
>
> ______________________________________________
> 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.
>