On Jul 5, 2009, at 8:54 AM, William Simpson wrote:
I want a function that takes an input vector, the number of columns
and returns a matrix as follows.
x<- 1:5
foo(x, nc=3)
1 5 4
2 1 5
3 2 1
4 3 2
5 4 3
See if this gives you any ideas:
sapply(1:3, function(z) { ((x - z) %% 5) +1 } )
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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