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pantaloonsofJUSTICE t1_jceid4e wrote

The mean should always move toward the current level.

3

DrChadKroegerMD t1_jceobxo wrote

I think it must be using like an average for a particular calendar day, so that is comparing March 20 of 2016 to the average on March 20 in other years.

13

Boatster_McBoat t1_jcfp7st wrote

That makes more sense, but the concept was poorly explained in the visualisation

2