Pandas groupby to find percent True and False

Question

I have a column of sites: [\'Canada\', \'USA\', \'China\' ....]

Each site occurs many times in the SITE column and next to each instance is a true or false value.

Answer 1

Something like this:

In [13]: g = df.groupby('SITE')['VALUE'].mean()
In [14]: g[g > 0.1]
Out[14]: 
SITE
Canada    0.5
USA       1.0