Norganna's AddOns

As far as I know Histogram never discards any data.
Does this mean that if I have say 1-year long data it will count average price for the whole year?
If so I'd want to suggest making a new modified Histogram stat module with customizable data period. Or if its difficult to imlement, at least some fixed reasonable short-term period like 1 month.
The main point is to have more accurate short-term percent values which both Market Price and regular Histagram not always can provide.

Excuse me for my English.