The automated bonsai greenhouse heater turning on study results are in
I'd been waiting for this!
But does it mean what it seems to mean??? On a warm day, the heater never turns on (count of 0). On a cool day it turns on, warms up quickly, and turns off multiple times (high count). But on a very cold day, the heater turns on and never turns off (count of no more than 1). Heater count as a function of ambient temperature is a second order curve with two zeros.
Total on-time per day would be a better measure than frequency of on-events.
Note: a more detailed analysis of the pattern of on-off transitions could probably detect the cycling of the main heating system for the house. And an analysis of heater timing relative to the diurnal cycle could determine whether the bonsai is in a east, south, west, or north window. And an even more careful analysis could probably determine the geo-coordinates of the bonsai from the inferred fingerprint of sunny vs. cloudy days and a search of weather records in likely locations (e.g., a cold December means the bonsai is in the northern hemisphere and the diurnal cycle in UTC estimates the longitude to narrow the search space).