`numpy.ma.core:left_shift`

Signature

def left_shift ( a , n )

Shift the bits of an integer to the left.

This is the masked array version of numpy.left_shift, for details see that function.

Shift with a masked array:

arr = np.ma.array([10, 20, 30], mask=[False, True, False])
np.ma.left_shift(arr, 1)

Large shift:

np.ma.left_shift(10, 10)

Shift with a scalar and an array:

scalar = 10
arr = np.ma.array([1, 2, 3], mask=[False, True, False])
np.ma.left_shift(scalar, arr)