I forgot to change the header, so I guess no one read my mail. That's why I'm trying it again...
> > > Hello everbody, > > I am new to this mailing list and hope to find some help. > I'm trying to get into the spatstat package and encountered two problems. > First a graphical one: > There is an example dataset called "finpines" which has several marks > (http://www.oga-lab.net/RGM2/func.php?rd_id=spatstat:finpines) > When I pass the given code from the website to R > > > > data(finpines) > > plot(unmark(finpines), main="Finnish pines: locations") > plot(finpines, which.marks="height", main="heights") > > plot(finpines, which.marks="diameter", main="diameters") > I get the warning > > Warnmeldung: > In symbols(c(-1.993875, -1.019901, -4.914071, -4.469962, -4.303847, : > "which.marks" ist kein Grafikparameter > > Something like "which.marks" is not a graphic parameter; and the plots for > height and diameter show now differences. > > Furthermore, I want to create a ppp with several marks, but I did not figure > out how this works. > Trying > > X <- as.ppp(mydata, owin(c(174, 178), c(29, 33))) > > just gives the error > > Error in as.ppp(mydata, owin(c(174, 178), c(29, 33))) : > X must be a two-column or three-column data frame > > The data set looks something like > > Date X Y Mar1 Mar2 Mar3 > > 1.1. 4 3 50 6 A > 2.1. 2 1 40 9 A > 3.1. 5 8 35 12 B > > But how can I integrate two or more marks in a three-column data frame, when > two columns are already needed for the X and Y coordinates? > > I hope you can help me with this. > > Cheers > sina > > > > > > [[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. [[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.
