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# numpy.random.RandomState.shuffle

`RandomState.``shuffle`(x)

  Modify a sequence in-place by shuffling its contents.

  Parameters : | x : array_like The array or list to be shuffled.
  Returns : | None :

  Examples

      >>> arr = np.arange(10)
      >>> np.random.shuffle(arr)
      >>> arr
      [1 7 5 2 9 4 3 6 0 8]

  This function only shuffles the array along the first index of a multi-dimensional array:

      >>> arr = np.arange(9).reshape((3, 3))
      >>> np.random.shuffle(arr)
      >>> arr
      array([[3, 4, 5],
             [6, 7, 8],
             [0, 1, 2]])

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