Francisco J. Zagmutt wrote: > I don't have much experience in the subject but it seems that library(akima) > should be useful for your problem. Try library(help="akima") to see a list > of the functions available in the library. > > I hope this helps > > Francisco
Yes, function aspline() of package akima is well suited for such things: no wiggles like in spline() and less variance reducing than approx(). But in any case: excessive interpolation will definitely lead to biased results, in particular artificial autocorrelations. If ever possible, David should look for methods, capable of dealing with missing data directly. Thomas P. ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
