Hi Martin, (In regards to your last ***two*** posts). (Excerpt, post one) > Well, as I know spent enough time reading and thinking, I'd > really like to add method = "clamped" to splinefun() and also > the other one where fix the 2nd derivatives (to arbitrary values > instead of zero).
(Excerpt, post two) > So as a matter of fact I would ask for patches there (both in C > and in R calling C ... maybe too much for 30 minutes ;-) I'm happy to have a look a the spline code. However, there's likely to be a substantial delay. First, I need to: (1) Change operating systems. Hopefully soon... (2) Learn to build and debug R packages with non-trivial C code. (3) Update my kubik package. Will be looking at second derivatives, but more importantly rewriting the root finding algorithm. (4) Familiarize myself with spline theory (other than bezier/hermite). My guess is I will get there in about eight to ten months, from now. If you need it done sooner, and want someone else to do it, that's fine... Also, it may be a good idea for you to work out what you would like the top-level function signatures to look like... ______________________________________________ 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.
