Hi, > #errors occurs???????? > env.lab <- Kenv.label(case_pts,control_pts,splancs_poly, nsim=999, seq > (0,23000,500)) > error:v error in erifyclass(X, "ppp") : argument 'X' is not of class > 'ppp' > > Q1: Now that khat(splancs) goes fine, why not Kenv.label(splancs)? > From the help, it didn't say that it needs the point data set to be > the class of ppp(spatstat).
The problem is not in Kenv.label() but in rlabel(), which is called from Kenv.label and that has versions in Splancs and Spatstat. So, if you loaded Spatstat after Splancs, then you will be using the 'wrong' (non- Splancs) version. My advice is to load Splancs only and do the analysis. I think you could use Spatstat as well to get the envelopes of the K- function (using envelope() ) but it might require a few more lines of code. Best, Virgilio P.S: Is it wise to use variable names with underscore in it? _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
