MATLAB Answers


negative r squared

Asked by AP
on 7 Jul 2011

I have fitted the line y=x which passes through origin to a bunch of data by using cftool. I got a negative r squared for the coefficient of determination. Could someone shed light on what that means? I know that y=x is not the best fit but I want to see how much is the determination coefficient if I force the data to be fitted to y=x.





No products are associated with this question.

1 Answer

Answer by Oleg Komarov
on 7 Jul 2011

Regressing through the origin doesn't give the R^2 you expect.


Join the 15-year community celebration.

Play games and win prizes!

Learn more
Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

MATLAB Academy

New to MATLAB?

Learn MATLAB today!