On Wed, 26 Oct 2011, Sven Schreiber wrote:
b is the coefficient -- if you have trouble finding it in the output,
predict some wonderful weeks ahead for you in which you will discover
the beautiful world of econometrics.
As for the different R2, you would need to post an example. This
is so standard that I'm willing to bet a large amount of money that if
you compare the correct numbers, they will be the same. My first guess
is different effective samples.
Or perhaps, constant/no constant.
Riccardo (Jack) Lucchetti
Dipartimento di Economia
Università Politecnica delle Marche