Numpy shuffle multidimensional array by row only, keep column order unchanged

Question

How can I shuffle a multidimensional array by row only in Python (so do not shuffle the columns).

I am looking for the most efficient solution, because my ma

Answer 1

You can shuffle a two dimensional array A by row using the np.vectorize() function:

shuffle = np.vectorize(np.random.permutation, signature='(n)->(n)')

A_shuffled = shuffle(A)