Note that there is NOT an intercept term in my pspline basis. One of the features of psplines is that \sum beta_i f_i(x) (where f_i are the spline basis functions) is linear if and only if the coefficients beta are a linear sequence. This makes it easy to decompose the fit into linear and non-linear effects.
Terry T ______________________________________________ R-help@r-project.org mailing list 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.
