how can i find R2 (Rsquared) for regression problem in matlab?

how can i find R2 (Rsquared) for regression problem in matlab?I have my forecasted outputs and targets .How can i write code for plotting R2 for this?

Kindly advice

Answer 1

[Sulaymon Eshkabilov]

R-squared can be computed easily from your derived fit model vs. your original data. Moreover, R-square can be computed in Statistics, Curve fitting and a few other toolboxes of matlab, as well.

Here is a nice doc of mathworks on it:

https://www.mathworks.com/help/stats/coefficient-of-determination-r-squared.html