How to shuffle randomly first raw of a matrix so its corresponding value in the column shuffles with it
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I have a matrix
X=[N1...N5 ; M1...M5];
I want to shuffle the N values so they have their corresponding M values in the second row.
For example:
If N values are shuffled as: N3, N1, N5, N4, N2
then, the new vector will be:
X=[N3, N1, N5, N4, N2 ; M3, M1, M5, M4, M2]
** This matrix is just an example, I will have to shuffle a much larger matrix a several times (each time shuffles randomly)
Help please
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