Dear all,
I want to plot the cross hscattergram between two different variables. I used the following instruction: hscat(jura.pred$Cd~jura.pred$Zn, jura.pred, c(0, 0.1, 0.2, 0.3, 0.5, 1), alpha=c(0,45)) where jura.pred$Cd and jura.pred$Ni are the two variables, but the result obtained is the same of the univariate case when I put 1 instead of jura. pred$Zn. Can you help me? Thanks Cristiano >----Messaggio originale---- >Da: [email protected] >Data: 03/04/2009 21.40 >A: "milton ruser"<[email protected]> >Cc: <[email protected]> >Ogg: Re: [R-sig-Geo] rasterize shape file and output as .img > >On Fri, 3 Apr 2009, milton ruser wrote: > >> Dear all, >> >> I have a set of shapefile and I need rasterized it using a collumn called >> ClassCover, >> and with the resolution of 30 meters. How can I do this on R? > >Use bbox() of the SpatialPolygonDataFrame to find the extent. Create a >GridTopology object, and overlay the polygons - possibly just with >ClassCover - and the SpatialGrid built with the GridTopology object. This >should yield a SpatialGridDataFrame with a single band, with NAs outside >the polygons, and the polygon column values for raster cells where their >centres fall inside the polygons. > >> Another thing is that I need to output the raster as IMG (erdas/arcgis) >> format. > >writeGDAL in rgdal. > >Hope this helps, > >Roger > >> >> Any help are welcome. >> >> Best wishes, >> >> milton >> Brasil/Toronto >> >>> require(maptools) >>> require(sp) >>> require(rgdal) >>> todos<-readShapePoly("myshape.shp") >>> sessionInfo() >> R version 2.9.0 alpha (2009-03-26 r48224) >> i386-pc-mingw32 >> locale: >> LC_COLLATE=English_Canada.1252;LC_CTYPE=English_Canada.1252; LC_MONETARY=English_Canada.1252;LC_NUMERIC=C;LC_TIME=English_Canada.1252 >> attached base packages: >> [1] stats graphics grDevices utils datasets methods base >> other attached packages: >> [1] rgdal_0.6-7 maptools_0.7-20 sp_0.9-32 foreign_0.8-34 >> loaded via a namespace (and not attached): >> [1] grid_2.9.0 lattice_0.17-20 >> >> [[alternative HTML version deleted]] >> >> _______________________________________________ >> R-sig-Geo mailing list >> [email protected] >> https://stat.ethz.ch/mailman/listinfo/r-sig-geo >> > >-- >Roger Bivand >Economic Geography Section, Department of Economics, Norwegian School of >Economics and Business Administration, Helleveien 30, N-5045 Bergen, >Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 >e-mail: [email protected] > >_______________________________________________ >R-sig-Geo mailing list >[email protected] >https://stat.ethz.ch/mailman/listinfo/r-sig-geo > _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
