calculation of the linear regression equation
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Hi all
I have two arrays of data including A , B. I want to calculate the linear regression equation of A , B as well as the value of Sum of Square Errors (SSE).
How can I write this program in Matlab.
Thanks in advance.
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Walter Roberson
am 30 Dez. 2011
Somayeh, it would be appreciated if you would use more meaningful tags instead of your initials. You can find your own threads by using the My Questions link; tags are for categorizing questions.
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Matt Tearle
am 28 Dez. 2011
If you have Statistics Toolbox
doc regress
If not, you can do it yourself (although you'll have to take care of NaNs or other glitches).
F = [ones(size(A)),A];
c = F\B
will give you the coefficients. Then
Bmodel = F*c;
resid = B - Bmodel;
SSE = resid' * resid
(Assuming everything is a column vector.)
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