Dear R-help, I have a problem where I am using the mgcv package to in a situation where I am fitting a gam model with a 1-D spline smoother model over a domain [a,b] but then need to make predictions and extrapolate beyond b. Is there anyway where I force the first derivative of the spline to be zero at boundaries, so that I simply get a constant value outside the domain?
Best wishes, Mark [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.