R-Squared Formula

[RayBurek]

Can anyone provide the equations to compute r-squared? I want to plot this as an indicator measuring confidence level of linear regression trend.
Thanks,
Ray Burek

[buzzhorton]

Search the forum for r-squared and you'll probably find what you are looking for

[gspiker]

Be aware that there is more than one way to calculate R-squared...(and they do give different values), so if you have a specific method in mind, you might verify that any efs you find uses the method you want.

Let me know if you don't have luck. I know I coded these a long time ago and might be able to find them again in my archives...

G