On Wed, 17 Mar 2004, C Peroni wrote: > Dear All, > > I am trying to visualize the surface of a bivariate kernel density > estimate. > I have a vector of bivariate observations(x,y), and a function which > computes the kernel density estimate z corresponding to each > observation. I cannot generate the (x,y) data in the ascending order > needed by persp(x,y,z). > I was wondering whether there is an R version of the S function interp.
There is, in package akima. But, you really want to be interpolating in the kde: both MASS and KernSmooth have functions to do 2D kde for you. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
