How to get Rinv paramater in a cfit variable of workstation.

Hi,

I want to get the value of rinv from a cfit variable in workstation. In function "confint", I see it can be called directly as " xx.rinv", but in other function (such as main function) I can't use this mean to read its' value. I tried using another function to read its value and failed. Only the function in library can call it directly.

Even if there is a cfit variable in workstation, I can't read it. So do you have other means how to read cfit variable in workstation and get its' rinv value or other ways to use function to call the rinv value of a cfit file.

Thank you for your patience.

Hal