Seems to me that only functions which don't require a data.frame type object work with this link. Eg, if I want to set up a regression, then project it over new data using the 'predict' function in R - no joy (I just get the fitted values over the original data).
Also, fitting a regression with categorical variables - no joy.
Can anyone confirm for me whether this is right please? I'd be very happy if I was wrong and I just need to change something in my set up to achieve the above.