[R] generate combination set

[Adrian Dusa]

On Thursday 15 November 2007, Bill.Venables at csiro.au wrote:
> Actually, (now that I know about combn), a better way is
>
> t(matrix(set[combn(7,2)], nrow = 2))

Indeed, or to avoid transposing:

matrix(set[combn(7,2)], ncol = 2, byrow=T)

Adrian

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Adrian Dusa
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