> Thanks for help! > However, changing the index from i to j for the column vector changes the > output. I would like the matrix to be the following:
> -1 1 0 0 0 0 0 > 0 -1 1 0 0 0 0 > 0 0 -1 1 0 0 0 > ..... > etc. > How to code it? as Enrico Schumann showed you: Without any loop, a very nice R-ish way (see his message)! Martin > Best, > Maija ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
