[R] Complicated For Loop (to me)

[hadley wickham]

Have a look at ?split

Hadley

On Mon, Nov 9, 2009 at 10:41 AM, agm. <amurray at vt.edu> wrote:
>
> Hello,
>
> I'm trying to run a loop that will subset my data into specific sets by
> regions and by race/ethnicity.  I'm trying to do this fairly compactly, and
> I cannot get this to work.
>
> A "simple" version of the code that I am trying to run is:
>
> names <- c("white", "black", "asian", "hispanic")
> for(j in names){
> for(i in 1:9){
> names.cd[i].es.wash <- 1
> es.cd[i].names.w <- names.cd[i].es.wash +1
> } ; }
>
> I want the loop to create these variables so that I would have for example:
> "white.cd1.es.wash" through "white.cd9.wash" and then the same for black,
> hispanic, and asian
>
> (However, none of these variables have been created yet outside of the loop)
>
>
> When I try to run this, I get the following error message:
>
> Error: unexpected symbol in:
> "for(i in 1:9){
> names.cd[i].es.wash"
>
> Any idea what I am doing wrong?  Thanks in advance for your help!  I am
> still trying to get my hands around this programming syntax
>
> --
> View this message in context: http://old.nabble.com/Complicated-For-Loop-%28to-me%29-tp26269479p26269479.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> 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.
>



-- 
http://had.co.nz/