"Emmanuel Levy" <[EMAIL PROTECTED]> wrote in news:[EMAIL PROTECTED]:
> Dear Bert, > > Thanks for your reply - I indeed saw a lot of functions using: > help.search("smooth") > > The problem is that most seem to not be very appropriate to what I'd > like, or they seem extremely complicated (e.g. gma). I am probably > missing something as I don't see how to use Loess. From my poor > understanding, it seems to be for 2D data. Here I want to smooth the > third "z" component. > > In the meantime I adapted a function from Greg Warnes, which sort of > does the job (although the smoothing is not very nice). > So I'd be very happy to learn how do do something similar with > loess! I am realizing that my memories about the kde2d function were faulty. My suggestion would only let you look at the 2-d "marginals". You probably want a true 3d plotting function. The densities would then be closed surfaces. Take a look at Feng and Tierney's figure 10 in this poster at: <http://user2007.org/program/posters/feng.pdf> The code cannot be cut-and-pasted, but if it does what you want, it would be worth it. -- David Winsemius ______________________________________________ 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.