How to find R2 and adjusted R2 for ridge regression model?

[june94]

When I run this code:

proc reg data=mydata outest=regout;
model y=x1 x2 x3 x4 / ridge=0.02;
run;

I get R2, adj R2 and parameter estimates for multiple linear regression. Are there any options to get them for ridge regression?

Sorry, I maybe asking a dumb question, I'm new to SAS and I can't find the solution.

[Ksharp]

https://blogs.sas.com/content/iml/2017/10/25/principal-component-regression-drawbacks.html

Calling @Rick_SAS