I think I have my answer... ggplot2 uses ecdf which does NOT allow weightings... so there is no warning or error, but still the resulting plot do not take into account the command weight=weight
Hope that helps someone, just in case ;-) On 8 October 2012 15:40, Francesco <caribou...@gmx.fr> wrote: > Dear all, > > I am trying to draw a weighted cumulative distribution (as defined > here http://rss.acs.unt.edu/Rdoc/library/spatstat/html/ewcdf.html) > with ggplot2 > > however the syntax > > temp<-qplot(X,weight=weight,data=data,stat = "ecdf", geom = > "step",colour=factor(year)) > > seems not to produce exactly the right figure (the values seems higher > at some points)... I am wrong in the weight definition? > > The data is like the following > > X Weight Year > 0 2 2001 > 0 1 2001 > 1 5 2001 > 2 1 2001 > 2 3 2001 > 2 2 2002 > 3.. etc > > Any ideas ? > Many thanks in advance ______________________________________________ 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.
