It’s computed, yes. And I defer to your grasp of the terminology!
And yes, separate trend-lines for before and after the red vertical line might have been good; if the graph’s creator makes such a version, I will post it.
It’s computed, yes. And I defer to your grasp of the terminology!
And yes, separate trend-lines for before and after the red vertical line might have been good; if the graph’s creator makes such a version, I will post it.