Dear list users and maptools mainteners, I'm a bit confused by the behaviour of the function as.SpatialPolygons.owin() library(spatstat) library(maptools) disc.test<-disc(radius=1, centre=c(0,0)) disc.sp<-as.SpatialPolygons.owin(disc.test) # <-- fails and return a error: could not find function "as.SpatialPolygons.owin" disc.sp<-as(disc.test, "SpatialPolygons") # <-- works fine On the other hand, as.SpatialPoints.ppp(object.ppp) and as(object.ppp, "SpatialPoints") work fine. I haven't tested all the possibilities between spatstat and sp object, so I don't know if this "bug", if it is really one (everything seems to work fine on my PC), is widespread. If not, I guess it was solely my Murphy's rule practise for today... Alex P.S.: sessionInfo() sion 2.12.1 (2010-12-16) Platform: x86_64-pc-mingw32/x64 (64-bit) locale: [1] LC_COLLATE=English_United Kingdom.1252 LC_CTYPE=English_United Kingdom.1252 LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C LC_TIME=English_United Kingdom.1252 attached base packages: [1] grid grDevices datasets splines graphics stats tcltk utils methods base other attached packages: [1] gpclib_1.5-1 maptools_0.7-38 foreign_0.8-41 spatstat_1.21-4 deldir_0.0-13 mgcv_1.7-2 rgdal_0.6-33 sp_0.9-76 effects_2.0-10 [10] colorspace_1.0-1 nnet_7.3-1 MASS_7.3-9 ncf_1.1-3 gplots_2.8.0 caTools_1.11 bitops_1.0-4.1 gdata_2.8.1 gtools_2.6.2 [19] scatterplot3d_0.3-31 lattice_0.19-13 svSocket_0.9-51 TinnR_1.0.3 R2HTML_2.2 Hmisc_3.8-3 survival_2.36-2 loaded via a namespace (and not attached): [1] cluster_1.13.2 Matrix_0.999375-46 nlme_3.1-97 svMisc_0.9-61 tools_2.12.1
Alexandre Villers, PhD. Postdoc researcher Spatial Ecology & Population Dynamics Section of Ecology, Department of Biology University of Turku FIN-20014 Turku Finland @mail: alexandre.villers at utu.fi phone: 00358 (0)2 333 5039 web page <http://vanha.sci.utu.fi/biologia/ekologia/villers_eng.htm> Skype <skype:aquila06?call> *Use open source and free softwares* <http://cran.r-project.org/> <http://grass.itc.it/> <http://www.qgis.org/> <http://fr.openoffice.org/> <http://www.mozilla-europe.org/fr/> <http://www.mozilla-europe.org/fr/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: Skypelogo.jpg Type: image/jpeg Size: 5395 bytes Desc: Skypelogo.jpg URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment.jpg> -------------- next part -------------- A non-text attachment was scrubbed... Name: Rlogo.jpg Type: image/jpeg Size: 1753 bytes Desc: Rlogo.jpg URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment-0001.jpg> -------------- next part -------------- A non-text attachment was scrubbed... Name: GRASSlogo.png Type: image/png Size: 3277 bytes Desc: GRASSlogo.png URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment.png> -------------- next part -------------- A non-text attachment was scrubbed... Name: QGIS.png Type: image/png Size: 4144 bytes Desc: QGIS.png URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment-0001.png> -------------- next part -------------- A non-text attachment was scrubbed... Name: OOlogo.gif Type: image/gif Size: 4246 bytes Desc: OOlogo.gif URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment.gif> -------------- next part -------------- A non-text attachment was scrubbed... Name: TBlogo.jpg Type: image/jpeg Size: 1385 bytes Desc: TBlogo.jpg URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment-0002.jpg> -------------- next part -------------- A non-text attachment was scrubbed... Name: FFlogo.jpg Type: image/jpeg Size: 1686 bytes Desc: FFlogo.jpg URL: <https://stat.ethz.ch/pipermail/r-sig-geo/attachments/20110210/4210d867/attachment-0003.jpg>