On Tuesday 14 November 2006 09:28, Leeds, Mark (IED) wrote: > thanks beilton but that won't work. A diff will also include 61-41 etc > and I don't want to include those. > > I'm working on using lapply or sapply with a seq along 31, 61, etc. > I'll let you know if it works. >
Try looking at: dim(idx) <- c(3, length(idx)/3) then: tmp[idx[2, ]] - temp[idx[1, ]] temp[idx[3, ]] - temp[idx[2, ]] HTH Ray Brownrigg ______________________________________________ [email protected] 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.
