openenergymonitor/emoncms3 — pull request #5 by MarsFlyer (2012-04-08 20:01:05+00:00)
Title: Histogram functionality

As discussed at Homecamp 4, I've added Histogram functionality.
The histogram shows the energy (watt hours) by power (watts) which allows analysis of what types of devices (low / medium / high) are using the most energy.
1. Adds a new Histogram feed type.
Note this needs an additional column in the table. I've set this as process type 16.
2. Display a Histogram chart, this can be shown for any date range (year, month & day).
This is set as view type 5.

To do in the future:
1. Provide a right click zoom rather than using the checkbox.
2. Allow comparison of different dates (this will need normalisation for the number of days).
3. Highlight the low/medium/high dividing wattages (the watts where 33% & 66% of the energy has been used).