Boolean arrays

Additionally, NumPy handles indexing with Boolean logic:

1. First produce a Boolean array:

array_1 > 5
array([[False, False],
       [False, False],
       [False,  True],
       [ True,  True],
       [ True,  True]], dtype=bool)

1. Place brackets around the Boolean array to filter by the Boolean array:

array_1[array_1 > 5]
array([ 6,  7,  8,  9, 10])