Ms. White: Unless I have seriously misjudged, you really really really need to go through an R tutorial -- An Intro to R ships with R, but there are many on the web -- before posting here further. You do not appear to have made much of an effort to learn even the basics, and I consider it unfair to post questions here on basic matters that a tutorial would tell you about.
And, of course, my apologies if I have gotten it wrong. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." Clifford Stoll On Mon, Jul 21, 2014 at 1:33 PM, carol white <wht_...@yahoo.com> wrote: > Might be a trivial question but how to identify the odd and even indices of a > vector? > > x = c(1,z,w,2,6,7) > > el of odd indices= 1,w,6 > el of even indices= z,2,7 > > given the def of odd and even in > https://stat.ethz.ch/pipermail/r-help/2010-July/244299.html > > should a loop be used? > > for (i in 1: length(x)) > if (is.odd(i)) print (i) > > > Carol > > [[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. ______________________________________________ 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.