Numpy int array: Find indices of multiple target ints

Question

I have a large numpy array (dtype=int) and a set of numbers which I\'d like to find in that array, e.g.,

import numpy as np
values = np.array(         


        

Answer 1

Is this fast enough?

>>> np.where(np.in1d(values, searchvals))
(array([ 0,  2,  3,  8, 10]),)