Re: [R-sig-Geo] matching points to a raster

2009-06-05 Thread milton ruser
Hi there, How about join.asc at adehabitat packages? I have done this kind of points-raster overlap without problem using that funcion. Cheers milton On Fri, Jun 5, 2009 at 2:49 PM, Kamran Safi wrote: > Hi, > > I am not sure this is trivial. I think the simplest solution would be to > find th

Re: [R-sig-Geo] spgrass6 and R 2.9

2009-06-05 Thread Dylan Beaudette
On Friday 05 June 2009, Roger Bivand wrote: > On Fri, 5 Jun 2009, Dylan Beaudette wrote: > > On Fri, Jun 5, 2009 at 1:55 AM, Roger Bivand wrote: > >> On Thu, 4 Jun 2009, Dylan Beaudette wrote: > >>> On Monday 01 June 2009, Roger Bivand wrote: > On Mon, 1 Jun 2009, Dylan Beaudette wrote: >

Re: [R-sig-Geo] matching points to a raster

2009-06-05 Thread Alexander Brenning
Hi Juliane, may I also suggest having a look at the pick.from.ascii.grid function (and the like) in the RSAGA package. This will use nearest neighbour interpolation (or, for reasonably small grids, may also use an ad hoc local kriging interpolation) to pick grid values (from grids with numeri

Re: [R-sig-Geo] spgrass6 and R 2.9

2009-06-05 Thread Roger Bivand
On Fri, 5 Jun 2009, Dylan Beaudette wrote: On Fri, Jun 5, 2009 at 1:55 AM, Roger Bivand wrote: On Thu, 4 Jun 2009, Dylan Beaudette wrote: On Monday 01 June 2009, Roger Bivand wrote: On Mon, 1 Jun 2009, Dylan Beaudette wrote: On Friday 29 May 2009, Torleif Markussen Lunde wrote: Hi Firs

Re: [R-sig-Geo] matching points to a raster

2009-06-05 Thread Kamran Safi
Hi, I am not sure this is trivial. I think the simplest solution would be to find the closest grid cell centre (maybe using spDistN1 or simple vector length) and get the closest grid cell with environmental data and assign it to your animals' position. You can further complicate things by not

Re: [R-sig-Geo] matching points to a raster

2009-06-05 Thread rick reeves
Hi Juliane: I see that you are STILL pushing the outer limits of R - :} I have been working a lot with combining point/vector and raster files using the overlay() method in the sp package. I suspect that if you want to have two spatially registered layers (raster and point vector) and want to

[R-sig-Geo] From the GEOSTAT 2009 Summer School for PhD students (report)

2009-06-05 Thread Tomislav Hengl
FYI: The official report from the GEOSTAT 2009 Summer School for PhD students: http://spatial-accuracy.org/FromGEOSTAT2009 TITLE: "Spatio-temporal data analysis with R+SAGA+Google Earth" LOCATION: Mediterranean Institute for Life Sciences, Split, Croatia PERIOD: 3-10 May 2009 LECTURERS: R. Biva

Re: [R-sig-Geo] spgrass6 and R 2.9

2009-06-05 Thread Dylan Beaudette
On Fri, Jun 5, 2009 at 1:55 AM, Roger Bivand wrote: > On Thu, 4 Jun 2009, Dylan Beaudette wrote: > >> On Monday 01 June 2009, Roger Bivand wrote: >>> >>> On Mon, 1 Jun 2009, Dylan Beaudette wrote: On Friday 29 May 2009, Torleif Markussen Lunde wrote: > > Hi > > First try u

[R-sig-Geo] [Report #2] Kriging with GRASS and R: v.autokrige port to wxPython and more

2009-06-05 Thread Anne Ghisla
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello all, here's second report for my project. See wiki page for more detail [0]. = Done = - - Ended "An Introduction to Applied Geostatistics", great source of information of what the module is supposed to do. Now I can be both developer and user,

[R-sig-Geo] geoR: variofit question

2009-06-05 Thread Laura Chihara
I'm reading some papers that compare various theoretical semi-variogram models to data using weighted least squares. In the papers, the authors look at the root mean square error. I would like to try to replicate the results. Is there a way to extract the RMSE when using weighted least squares f

Re: [R-sig-Geo] matching points to a raster

2009-06-05 Thread Tobias Vetter
I am not sure if I undersood your problem. Do you like to get rastervalues for a point theme? If yes, then overlay() might be helpful. Tobias Dear list, I am trying to incoporate spatial information (for example distance) into a movement model by reading an ascii -b converted raster and matchi

[R-sig-Geo] matching points to a raster

2009-06-05 Thread Struve, Juliane
Dear list, I am trying to incoporate spatial information (for example distance) into a movement model by reading an ascii -b converted raster and matching the raster with points of a movement path (for example fishmove$coord[fishmove$day==1]. Below is a section of my code to explain the problem

[R-sig-Geo] How to using polygon from SHP file to cover the whole germany in Google map

2009-06-05 Thread Jian Li
Dear Members, Could anybody help me to using polygon from SHP file to cover the whole germany in Google map? The shp file is under http://jaguar.biologie.hu-berlin.de/~jian/phpMysqlGoogle/arcViewNro2/ available Best Regards, Jian _

[R-sig-Geo] Keep dimensions with dilate.owin

2009-06-05 Thread Adrian.Baddeley
Etienne Bellemare etienn...@gmail.com writes: > When using erode.owin from spatstat package, you can specify to keep the > window extent (shrink.frame=FALSE). But, with dilate.owin, you cannot use > shrink.frame. What can I use to keep the same extent ? This question

Re: [R-sig-Geo] spgrass6 and R 2.9

2009-06-05 Thread Roger Bivand
On Thu, 4 Jun 2009, Dylan Beaudette wrote: On Monday 01 June 2009, Roger Bivand wrote: On Mon, 1 Jun 2009, Dylan Beaudette wrote: On Friday 29 May 2009, Torleif Markussen Lunde wrote: Hi First try updating glibc, and install spgrass6 again. If this does not work you could try export MALLOC_