search for: urnsamples

Hi, I want to build the table of a football league with 11 teams. All play together. So will 55 games. Since there are an odd number of teams in each round a team will not play. The games will be: games = urnsamples(1:11, x = c('A','B','C','D','E','F','G','H','I','J','K'), size=2, replace=F, ordered=FALSE) games As will be five games per round. How to build a table with all the championship rounds, automatically? I thou...

Let say, I have a matrix with 8 rows and 6 columns:  >  df1  <- matrix(NA, 8, 4)  > df1       [,1] [,2] [,3] [,4]  [1,]   NA   NA   NA   NA  [2,]   NA   NA   NA   NA  [3,]   NA   NA   NA   NA  [4,]   NA   NA   NA   NA  [5,]   NA   NA   NA   NA  [6,]   NA   NA   NA   NA  [7,]   NA   NA   NA   NA  [8,]   NA   NA   NA   NA  Now I want to get **all possible** ways to fetch 6 cells at a

I'm doing a permutation test and need to efficiently generate all distinct subsets of size r from a set of size n. P 138 of MASS (4th ed) notes that "The code to generate this efficiently is in the scripts". I was unable to find this code on quick inspection of the \library\MASS\scripts file for Chapter 5 and 'subsets' is not a function in MASS. I did find this problem is

Hi, This has been asked before but not sufficiently answered from what I could find. How do you create combinations with repetitions (multisets) in R? If I have > set <- array(1:3) And I want to choose all combinations of picking 2 numbers, I want to get a print out like [,1] [,2] [1,] 1 1 [2,] 1 2 [3,] 1 3 [4,] 2 2 [5,] 2 3 [6,] 3 3 subsets(set,

...e@gmail.com> > Cc: r-help@r-project.org > Message-ID: > <2ad0cc110903130625o71b3c256q84f418f8ec2b5802@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > For permutations a couple of options are 'permutations' in package > gtools, and 'urnsamples' in package prob > > hth, > Kingsford Jones > > On Fri, Mar 13, 2009 at 6:35 AM, Dale Steele <dale.w.steele@gmail.com> > wrote: > > I'm doing a permutation test and need to efficiently generate all > > distinct subsets of size r from a set of size n. ?P 1...