Math Question_ Combination
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Hi,
Let say i have 10 location. I wana test 3 location at a time.
i think there are 10C3=120 combination.(assuming order of the location is not important).
My question is how do i list all the combination in an array?
For example [1 2 3,1 2 4, 1 2 5 ,. . . . . till the 120th]
采纳的回答
Oleg Komarov
2011-6-28
nchoosek(1:10,3)
3 个评论
Kyle
2011-6-28
Kyle
2011-6-28
Oleg Komarov
2011-6-28
There are many valuable contributions on the FEX which cover combinatorics. I personally use combinator.
更多回答（1 个）
Sean de Wolski
2011-6-28
That's a fun little challenge before lunch break:
[xx yy zz] = ndgrid(1:10);
vals = unique(sort([xx(:),yy(:),zz(:)],2),'rows');
vals(any(~diff(vals,1,2),2),:) = [];
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