["python","arrays","numpy"]
Interleaving two NumPy arrays efficiently

Assume the following arrays are given: a = array([1, 3, 5]) b = array([2, 4, 6]) How would one interleave them efficiently so that one gets a third array like the following? c = array([1, 2, 3, 4, 5, 6]) It can be assumed that length(a) == length(b).
I like Josh's answer. I just wanted to add a more mundane, usual, and slightly more verbose solution. I don't know which is more efficient. I expect they will have similar performance. import numpy as np a = np.array([1,3,5]) b = np.array([2,4,6]) c = np.empty((a.size + b.size,), dtype=a.dtype) c[0::2] = a c[1::2] = b