Take a look at the kde2d function in the MASS package, maybe it helps.
Best kd 2012.06.19. 14:26 keltezéssel, Guillaume Chapron írta: > Hi, > > I'm unable to find a way to smooth data for a persp() graph. > > Example, suppose that I have data x,y,z like this: > > x<- 1:10 > y<- 1:10 > > k<- 20 > z<- outer(x, y, "*") + matrix( k*runif(100, -1, 1), 10, 10) > persp(x, y, z, theta = 35, phi = 25) > > The graph is not very nice. Is there a way to smooth the z data so that at > the end the graph would look more like something like that: > > k<- 2 > z<- outer(x, y, "*") + matrix( k*runif(100, -1, 1), 10, 10) > persp(x, y, z, theta = 35, phi = 25) > > There seems to be many smoothing functions in R (e.g. loess) but I have not > been able to find one for a 3D graph. > > Thanks! > > Guillaume > > ______________________________________________ > 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. > > > [[alternative HTML version deleted]]
______________________________________________ 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.
