Find nearest value in numpy array

Question

Is there a numpy-thonic way, e.g. function, to find the nearest value in an array?

Example:

np.find_nearest( array, value )

Answer 1

For 2d array, to determine the i, j position of nearest element:

import numpy as np
def find_nearest(a, a0):
    idx = (np.abs(a - a0)).argmin()
    w = a.shape[1]
    i = idx // w
    j = idx - i * w
    return a[i,j], i, j