What do you want to achieve - shuffling along a dimension (i.e. shuffling
rows or columns), or just shuffling all the numbers?
For the latter, it can be achieved pretty easily by reshaping to a vector
and back. This has the added benefit that it generalizes well to arbitrary
dimensions:
julia> A = reshape(1:40, 4,5,2)
4x5x2 Array{Int64,3}:
[:, :, 1] =
1 5 9 13 17
2 6 10 14 18
3 7 11 15 19
4 8 12 16 20
[:, :, 2] =
21 25 29 33 37
22 26 30 34 38
23 27 31 35 39
24 28 32 36 40
julia> reshape(shuffle(vec(A)), size(A)...)
4x5x2 Array{Int64,3}:
[:, :, 1] =
32 38 8 21 6
29 25 31 13 20
34 10 4 33 39
18 5 27 7 15
[:, :, 2] =
40 22 30 19 16
11 23 14 36 26
17 3 24 1 37
35 28 9 2 12
// T
On Thursday, March 24, 2016 at 2:09:36 PM UTC+1, Arundhyoti Sarkar wrote:
>
> Is there a way to shuffle matrix in julia like we do in matlab?
> I know shuffle(v) shuffles the vector v of type Array{Any,1}. But doesnot
> work with matrices.
>
