That's what I did. 'branches' was shown at the top. branches = c(5,6,5,5,5)
I tested this. When I copy and paste into R 10.0 I get the result in the post. Perhaps I should reinstall R. I guess I don't see how much more narrow I can get than this. i iInd = 1 for(i in 1:length(branches)) { print((1:branches[i])+iInd-1) # iInd is a position shift of the index ni = branches[i] print(i) print(ni) print(c(ni,rep(i,times=ni))) # ... some interesting other stuff for my project that gets wrecked because of this issue iInd = iInd + branches[i] } Erik Iverson-3 [via R] wrote: > Cannot reproduce, what is branches? If you can narrow it down to a > "commented, minimal, self-contained, reproducible" example, you're far > more likely to get help from the list. > > dkStevens wrote: > > > I'm observing odd behavior of the rep(...) procedure when using > variables as > > parameters in a loop. Here's a simple loop on a vector 'branches' > that is > > c(5,6,5,5,5). The statement in question is > > print(c(ni,rep(i,times=ni))) > > > > that works properly first time through the loop but the second time, > when > > branches[2] = 6, only prints 5 values of i. > > > > Any ideas, anyone? > > > > iInd = 1 > > for(i in 1:length(branches)) { > > print((1:branches[i])+iInd-1) # iInd is a position shift of > the index > > ni = branches[i] > > print(i) > > print(ni) > > print(c(ni,rep(i,times=ni))) > > # ... some interesting other stuff for my project that gets wrecked > because > > of this issue > > iInd = iInd + branches[i] > > } > > > > # first pass through loop > > [1] 1 2 3 4 5 # branches[1] + iInd - 1 content > > [1] 1 # i value to repeat 5 times > > [1] 5 # ni = 5 on 1st pass > > [1] 5 1 1 1 1 1 # five values - 1 1 1 1 1 - OK > > > > # second pass through loop > > [1] 6 7 8 9 10 11 # branches[2] + iInd - 1 content > > [1] 2 # i value to repeat 6 times > > [1] 6 # ni = 6 on 2nd pass > > [1] 6 2 2 2 2 2 # 6 'twos' but only shows 5 'twos' > > print(c(ni,rep(i,times=ni))) - why not 6? > > > > > > ______________________________________________ > [hidden email] > <http://n4.nabble.com/user/SendEmail.jtp?type=node&node=1560566&i=0> > 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. > > > ------------------------------------------------------------------------ > View message @ > http://n4.nabble.com/Funny-result-from-rep-procedure-tp1560547p1560566.html > > To unsubscribe from Funny result from rep(...) procedure, click here > < (link removed) =>. > > -- David K Stevens, P.E., Ph.D., Professor Civil and Environmental Engineering Utah Water Research Laboratory 8200 Old Main Hill Logan, UT 84322-8200 435 797 3229 - voice 435 797 1363 - fax david.stev...@usu.edu -- View this message in context: http://n4.nabble.com/Funny-result-from-rep-procedure-tp1560547p1560641.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]] ______________________________________________ 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.