Saturday, September 08, 2012

XtransX to the minus one X transpose Y


X trans X to the minus one
X transpose Y
I said X trans X to the minus one
X transpose Y
you know that beta hat
is calculated like that

they call it OLS
when you want to regress
it's a fitting tool
that will give to you
the lowest RSS
yes that's the OLS

X trans X to the minus one
X transpose Y
I said X trans X to the minus one
X transpose Y
you know that beta hat
is calculated like that

Ordinary but rather neat
For ease of use it just can't be beat
A simple formula
and the calculation's complete
And you will find it BLUE
when all the assumptions are true

X trans X to the minus one
X transpose Y
I said X trans X to the minus one
X transpose Y
you know that beta hat
is calculated like that

they call it OLS
when you want to regress
it's a fitting tool
that will give to you
the lowest RSS
yes that's the OLS

1 Comments:

Blogger Glazy Hebetude said...

Your blog is more than entertainment! It's is to me the warm comfort of chicken noodle soup for the soul... when my Econometrics final is 2 days away and I am bound by bootstraps and proofs and more! Thank you thank you thank you!

10:44 PM  

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