ADias wrote:
>
> Is there an expression to double the values of a matrix - without using a
> loop?
>
>
Why so complicated?
Dieter
> m = matrix(rep(1,20),nrow=4)
> m
[,1] [,2] [,3] [,4] [,5]
[1,] 1 1 1 1 1
[2,] 1 1 1 1 1
[3,] 1 1 1 1 1
[4,] 1 1 1 1 1
> m*3
[,1] [,2] [,3] [,4] [,5]
[1,] 3 3 3 3 3
[2,] 3 3 3 3 3
[3,] 3 3 3 3 3
[4,] 3 3 3 3 3
>
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