Where can I find mad (mean absolute deviation) in scipy?

Question

It seems scipy once provided a function mad to calculate the mean absolute deviation for a set of numbers:

http://projects.scipy.org/scipy/browser/trunk

Answer 1

If you enjoy working in Pandas (like I do), it has a useful function for the mean absolute deviation:

import pandas as pd
df = pd.DataFrame()
df['a'] = [1, 1, 2, 2, 4, 6, 9]
df['a'].mad()

Output: 2.3673469387755106