On Sun, Dec 14, 2014 at 9:30 AM, Gerrit Draisma <gdrai...@xs4all.nl> wrote:
> Ha John, > Sorry I did not follow the discussion but what > about > combn(1:28,4) > ? > Gerrit. ​Very nice! Thanks. The form needed by the OP would be t(combn(1:28,4)) to swap rows & columns. I'm cross posting this to the r-help so that the OP can get at it (to give credit to the right person). This is just "phase 1" of her real quest for a set of 7x4 (rows x columns) matrices made from rows from that result which are complete (each matrix contains all the values in 1:28, and disjunct. (Assuming I'm remembering the correct words. Which is not so easy at 62, with college being a fading memory.) As an aside, I am really curious what the OP wants with this set of matrices. Another in the thread said something about "incomplete block designs", but that is something that I've never heard of before. I'm really poor at statistics. -- The temperature of the aqueous content of an unremittingly ogled culinary vessel will not achieve 100 degrees on the Celsius scale. Maranatha! <>< John McKown [[alternative HTML version deleted]] ______________________________________________ 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.