Is there a difference between the two? Are they the same? Thanks in advance
I think they’re the same, assuming the residual isn’t the mean. SSE is basically the sum of the residuals squared.
Here’s how I try to remember it:
Yi-Yhat = SSE=“unexplained variation”
Yhat-Ybar =“explained variation”
Yi-Ybar=“total variation”
Thanks, appreciate the note
What semantics defined is the E part of the SSE. To get to SSE, you have to square the errors and then add them up 
good explanation semantics, just got to that section myself
but of course CMLSML… 