Ryan King wrote:
> I'm trying to generate a report for the average number of calls a person
> makes per-day. The following generates the correct list, but if a user
> didn't make any calls a certain day it doesn't show up.
> 

Why would a day with no calls appear?  Its just reporting the DB data in 
an aggregated format.

Merge the returned ave_calls with a list built out of an iteration of 
from_date to to_date by day to fill the gaps.
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