I was thinking of a more focused search including the terms contour and either r-help or r-project, but not one restricted to GoogleGroups, ,,, more along the lines of:
http://www.google.com/search?hl=en&rlz=1B3GGGL_enUS278US278&q=r-help+quantile+contour&start=20&sa=N or... http://www.google.com/search?hl=en&rlz=1B3GGGL_enUS278US278&q=r-project+quantile+contour&btnG=Search One does not always get the same result. This morning when I tested that strategy, I got these hits: http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=104 and also found: http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=112 Both of which seemed of use for such a purpose. -- David Winsemius On Feb 15, 2009, at 9:48 PM, yuankun shi wrote: > There is misunderstanding between us. > I have search the groups with key words quantile and found this > article > http://groups.google.com/group/r-help-archive/browse_thread/thread/9f0d6e72702de11c/e2eb078d0c6f1e5f?hl=en&lnk=gst&q=quantile#e2eb078d0c6f1e5f > It talked about to use quantile to generate a contour with desired > proportion, but this probortion stand for how much percent of max > value of population. > While my problem is how to get the proportion of particles lies in > this cycle generated by contour not the proportion of z axis > > 2009/2/15 David Winsemius <dwinsem...@comcast.net> > > On Feb 15, 2009, at 7:55 AM, yk wrote: > > I have searched this forum with keywords contour and percent, it only > give one irrelevent result. > My problems is how to plot contour in percent. > In my figure, I have use kde2d to generate density of an array with > two dimension point. > Using image and contour could plot it. > But the line contour generated represent absolute value of population, > not how much pecent point within this cycle. > So, i there any function which could accomplish it?To generate a cycle > which could tell me how much percent of points lies in this cycle. > Thank you for your attention > > One way to approach it would be to > -create a function that returns the density for each x and y > -assign a density score to each case > -determine the quantiles > -draw the pseudo-3d or contour plot with colors or levels at the > desired proportion. > > I think I have seen worked examples of this process, so it may be > that searching on "quantile" instead of "percent" would be more > successful. > > -- > David Winsemius > [[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.
