On Thu, 24 Nov 2005, Benjamin Lloyd-Hughes wrote:
> Ok I warned you that I'd been drinking! What I really meant was
> something to go from:
>
> [,1] [,2]
> [1,] 1 2
> [2,] 4 3
>
> to
>
> [,1] [,2]
> [1,] 4 1
> [2,] 3 2
>
> to
>
> [,1] [,2]
> [1,] 3 4
> [2,] 2 1
>
> to
>
> [,1] [,2]
> [1,] 2 3
> [2,] 1 4
>
Another possible solution...
> library(matlab)
> x <- matrix(c(1,2,4,3), nrow=2, byrow=TRUE)
> x
[,1] [,2]
[1,] 1 2
[2,] 4 3
> matlab::rot90(x, 3)
[,1] [,2]
[1,] 4 1
[2,] 3 2
> matlab::rot90(x, 2)
[,1] [,2]
[1,] 3 4
[2,] 2 1
> matlab::rot90(x, 1)
[,1] [,2]
[1,] 2 3
[2,] 1 4
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