[R-sig-Geo] hscattergram between two different variables

facrimas at libero.it facrimas at libero.it
Sat Apr 4 19:18:12 CEST 2009


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: Roger.Bivand at nhh.no
>Data: 03/04/2009 21.40
>A: "milton ruser"<milton.ruser at gmail.com>
>Cc: <r-sig-geo at stat.math.ethz.ch>
>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
>> R-sig-Geo at stat.math.ethz.ch
>> 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: Roger.Bivand at nhh.no
>
>_______________________________________________
>R-sig-Geo mailing list
>R-sig-Geo at stat.math.ethz.ch
>https://stat.ethz.ch/mailman/listinfo/r-sig-geo
>



More information about the R-sig-Geo mailing list