Select N evenly spaced out elements in array, including first and last

Question

I have an array of arbitrary length, and I want to select N elements of it, evenly spaced out (approximately, as N may be even, array length may be prime, etc) that includes

Answer 1

Your GetSpacedElements() function should also take in the array to avoid unfortunate side effects elsewhere in code. That said, the function would need to look like this:

import numpy as np

def GetSpacedElements(array, numElems = 4):
    out = array[np.round(np.linspace(0, len(array)-1, numElems)).astype(int)]
    return out

arr = np.arange(17)
print(array)
spacedArray = GetSpacedElements(arr, 4)
print (spacedArray)