if this was to work, wouldn't the object 'v' be identical to 'x'?... so, why not use 'x' itself? b
On Tue, Mar 23, 2010 at 2:53 PM, Pj253 <pj...@cam.ac.uk> wrote: > > I have a list of vectors, x, with x[[1]]=1:5, say. > > And I need to go through each element of each vector in a for loop. > Something like: > > for (v in x[[1]]) > print(v) > > However, I need to store this index "v" for later, and I have lots of other > indices which we range over later in the code so thought I'd make a list of > these indices, v<-list(). But then when I try: > > for( v[[1]] in x[[1]] ) > print(v[[1]]) > > I get errors: > >> x<-list() >> x[[1]]=1:5 >> v<-list() >> for(v[[1]] in x[[1]]) > Error: unexpected '[[' in "for(v[[" >> print v[[1]] > Error: unexpected symbol in "print v" > > Can you not use a list in this way, i.e. to store variables to range over in > a for loop? Can anyone offer a solution? > > Thanks for any help! > > -- > View this message in context: > http://n4.nabble.com/using-a-list-to-index-elements-of-a-list-tp1679184p1679184.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@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. > ______________________________________________ R-help@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.