On Mon, May 21, 2012 at 9:27 AM, Øystein Godøy <o.go...@met.no> wrote: > Hi Joshua, > > Many thanks for your quick reply. > >> You can do it by passing a matrix for indexing instead of two vectors. >> Here's an example: >> >> tmpmat <- matrix(NA, nrow = 10, ncol = 10, >> dimnames = list(letters[1:10], LETTERS[1:10])) >> >> tmpmat[cbind(c("d", "e", "f"), c("D", "E", "F"))] <- 100 >> tmpmat >> >> The matrix is created using cbind() to columnwise bind the two vectors >> together. Then it does what you want I think. >> >> Hope this helps, > > This looks interesting and is what I want, but I am not fully understanding > the output I receive. The input array has 100 elements while the resulting > vector after replacement is 106 elements long. I have tried to understand the > manual on this, but it is yet not obvious for me how I am supposed to handle > this output.
I cannot reproduce this behavior. On my system, the output has 100 elements. > All the best > Øystein > -- > Dr. Oystein Godoy > Norwegian Meteorological Institute > P.O.BOX 43, Blindern, N-0313 OSLO, Norway > Ph: (+47) 2296 3000 (switchb) 2296 3334 (direct line) > Fax:(+47) 2296 3050 Institute home page: http://met.no/ -- Joshua Wiley Ph.D. Student, Health Psychology Programmer Analyst II, Statistical Consulting Group University of California, Los Angeles https://joshuawiley.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.