Hello R community,
I have cross-posted with r-sig-geo as this issue could fall under either
interest group I believe.
I just came accross the alphahull package and am very pleased I may not
need to use CGAL anymore for this purpose. However, I am having a
problem computing alpha shapes wit
Hi Roger,
I think I am making something wrong (see the error message, please).
reser is the polygon object that I read from a shapefile.
Thanks for your time.
milton
> class(reser)
[1] "SpatialPolygonsDataFrame"
attr(,"package")
[1] "sp"
> head(re...@data)
DOCNAME area_ha ClassCove
Hi R-sig:
I'm just an old guy and new to this list... But have been using R for
years now.
I want to make a map of couties in the US with shaded colors that depend
on the level of variable "Y" that I want to map.
I have the US county and state fips codes and the Y variable.
How do I do this?
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, an
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?
Another thing is that I need to output the raster as IMG (erdas/arcgis)
format.
Any help are welcome.
Best wishes,
milton
Brasil/Toronto
Jim,
Look at the spdep package for several regression methods that
incorporate spatial dependence and structure.
CS
Corey Sparks
Assistant Professor
Department of Demography and Organization Studies
College of Public Policy
One UTSA Circle
San Antonio, TX 78239
corey.spa...@utsa.edu
_
Paul Hiemstra schreef:
Ned Horning schreef:
Hi - Is it possible to output an Indexed (single band byte image)
GeoTiff using a predefined look-up-table in R? For now I output a
byte GeoTiff file from R and then import it into GRASS, create a
color table, and then export that as a colored GeoTif
Ned Horning schreef:
Hi - Is it possible to output an Indexed (single band byte image)
GeoTiff using a predefined look-up-table in R? For now I output a byte
GeoTiff file from R and then import it into GRASS, create a color
table, and then export that as a colored GeoTiff. That works fine but
Hi - Is it possible to output an Indexed (single band byte image)
GeoTiff using a predefined look-up-table in R? For now I output a byte
GeoTiff file from R and then import it into GRASS, create a color table,
and then export that as a colored GeoTiff. That works fine but it would
be nice to be
