Rainer M Krug wrote: > Hi > > the function density() does normally integrate to one - I've checked it > and it works and I also read the previous threads. > But I realised that it does not integrate to one if I use from, to or cut. > > My scenario: I simulated densities of a plants originating from an sseed > source at distance zero. Therefore the density of the plants will be > highest close to zero. Is there anything I can do to have this pattern? > If I use 'from' or 'cut', the resulting densities do not integrate to > one which I need as I want to compare different density curves.
The kernel chosen might be not the ideal one for such a restriction. If the density outside the "cut" range is extremely small, you might want to do a dirty transformation so that the values sum up to 1 again. > Ny second question is concerning the bandwidth. An I correct in saying > that if I want to compare different density estimates that the bandwidth > should be the same for all of them? Yes. Uwe Ligges > Thanks in advance for your help, > > Rainer > ______________________________________________ R-help@stat.math.ethz.ch 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.
