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.
