Running examples in ‘GET-Ex.R’ failed
The error most likely occurred in:

> ### Name: GET.spatialF
> ### Title: Testing global and local dependence of point patterns on
> ###   covariates
> ### Aliases: GET.spatialF
> 
> ### ** Examples
> 
> if(require("spatstat", quietly=TRUE)) {
+   # Example of tropical rain forest trees
+   data("bei")
+ 
+   fullmodel <- ~ grad
+   reducedmodel <- ~ 1
+   fitppm <- function(X, model, covariates) {
+     ppm(X, model, covariates=covariates)
+   }
+   ## Don't show: 
+ res <- GET.spatialF(bei, fullmodel, reducedmodel, fitppm, bei.extra, 3, alpha=0.5, dimyx=32)
+ ## End(Don't show)
+   plot(res$F)
+   plot(res$S)
+ 
+ }
Warning: replacing previous import ‘spatstat.utils::RelevantNA’ by ‘spatstat.sparse::RelevantNA’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::grokIndexVector’ by ‘spatstat.sparse::grokIndexVector’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::fullIndexSequence’ by ‘spatstat.sparse::fullIndexSequence’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::positiveIndex’ by ‘spatstat.sparse::positiveIndex’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::replacementIndex’ by ‘spatstat.sparse::replacementIndex’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::RelevantEmpty’ by ‘spatstat.sparse::RelevantEmpty’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::isRelevantZero’ by ‘spatstat.sparse::isRelevantZero’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::logicalIndex’ by ‘spatstat.sparse::logicalIndex’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::RelevantZero’ by ‘spatstat.sparse::RelevantZero’ when loading ‘spatstat.geom’
Warning: replacing previous import ‘spatstat.utils::strictIndexSequence’ by ‘spatstat.sparse::strictIndexSequence’ when loading ‘spatstat.geom’
spatstat.geom 1.65-5
Warning: replacing previous import ‘spatstat.utils::RelevantNA’ by ‘spatstat.sparse::RelevantNA’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::grokIndexVector’ by ‘spatstat.sparse::grokIndexVector’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::fullIndexSequence’ by ‘spatstat.sparse::fullIndexSequence’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::positiveIndex’ by ‘spatstat.sparse::positiveIndex’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::replacementIndex’ by ‘spatstat.sparse::replacementIndex’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::RelevantEmpty’ by ‘spatstat.sparse::RelevantEmpty’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::isRelevantZero’ by ‘spatstat.sparse::isRelevantZero’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::logicalIndex’ by ‘spatstat.sparse::logicalIndex’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::RelevantZero’ by ‘spatstat.sparse::RelevantZero’ when loading ‘spatstat.core’
Warning: replacing previous import ‘spatstat.utils::strictIndexSequence’ by ‘spatstat.sparse::strictIndexSequence’ when loading ‘spatstat.core’
spatstat.core 1.65-5

spatstat 2.0-1       (nickname: ‘Caution: contains small parts’) 
For an introduction to spatstat, type ‘beginner’ 

Error: 'is.ppp' is not an exported object from 'namespace:spatstat'
Execution halted