On Jul 17, 2013, at 4:43 PM, Witold E Wolski <wewol...@gmail.com> wrote:
> I would like to "cut" a vector into groups of equal nr of elements. > looking for a function on the lines of cut but where I can specify > the size of the groups instead of the nr of groups. In addition to the other options, if the 'breaks' argument to cut() is a single number, rather than a vector of cut points, it defines the number of intervals to break the 'x' vector into, which of course you can derive from length(x) / size. Thus: set.seed(1) Vec <- sample(30) > Vec [1] 8 11 17 25 6 23 27 16 14 2 5 4 13 7 18 30 29 24 20 9 10 21 [23] 26 1 22 15 28 12 3 19 # Split into 5 groups of 6 each > split(Vec, cut(Vec, 5)) $`(0.971,6.78]` [1] 6 2 5 4 1 3 $`(6.78,12.6]` [1] 8 11 7 9 10 12 $`(12.6,18.4]` [1] 17 16 14 13 18 15 $`(18.4,24.2]` [1] 23 24 20 21 22 19 $`(24.2,30]` [1] 25 27 30 29 26 28 Regards, Marc Schwartz ______________________________________________ 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.
