[FIXED] Tile array, randomising order of elements each time

Issue

Say I have an array

A = np.linspace(1,5,5)
A = np.array([1,2,3,4,5])

and I want to tile it 5 times, each time randomising the order, to give me for example

B = myfunc(A)
B = np.array([1,2,3,4,5,1,5,2,3,4,3,4,5,1,2,3,5,1,2,4,2,3,1,4,5])

How would I best go about this?

Note, the first tile doesn't have to be in order, nor does it have to be randomised, either works, whatever's easiest :)

Thanks

Solution

Simple implementation

import numpy as np

A = np.array([1,2,3,4,5])

def sampleNew(arr):
    out = arr.copy() # Copy the array to avoid overwrite
    np.random.shuffle(out) # Shuffle the copy
    return out

random_samples = np.concatenate([ sampleNew(A) for _ in range(5) ])

# %timeit returns 13.1 µs ± 68.1 ns per loop (mean ± std. dev. of 7 runs, 100,000 loops each)

I'm sure there is a quicker way to do this.

Answered By - Diego