Re: [R-sig-Geo] install.views

2011-11-11 Thread Forrest Stevens
Hi Erin, you need the CTV package in order to install a CRAN View. So something like the following should work: install.packages("ctv") library("ctv") install.view("Spatial") Hope this helps, Forrest Stevens University of Florida Department of Geography Land Use and Environmental Change Institu

[R-sig-Geo] install.views

2011-11-11 Thread Hodgess, Erin
Dear R Sig Geo People: I'm trying to install the "Spatial" as found in Bivand et al. I'm in Windows with R-2.14.0 on an XP machine. Here is what I did: > library(sp) > install.views("Spatial") Error: could not find function "install.views" > Does install.views not exist anymore, please? Than

Re: [R-sig-Geo] write/readOGR issue with date / time strings

2011-11-11 Thread Alex Mandel
Shapefiles, specifically dbf tables, do not support Date/Time fields - well at least date & time in the same field. You must set your column as Posix type or Character before export to ensure the values are written as a text column in the dbf file. Enjoy, Alex On 11/11/2011 03:16 PM, Corrie Curti

Re: [R-sig-Geo] write/readOGR issue with date / time strings

2011-11-11 Thread Corrie Curtice
> sessionInfo() R version 2.13.1 (2011-07-08) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) locale: [1] C/en_US.UTF-8/C/C/C/C attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] rgdal_0.7-1 sp_0.9-84 loaded via a namesp

Re: [R-sig-Geo] write/readOGR issue with date / time strings

2011-11-11 Thread Roger Bivand
On Fri, 11 Nov 2011, Corrie Curtice wrote: Hello, Apologies if this has already been addressed somewhere, I did a brief search of archives but didn't find quite this issue. Which versions of what are you using? You should provide the output of sessionInfo(), the messages given when rgdal loa

[R-sig-Geo] write/readOGR issue with date / time strings

2011-11-11 Thread Corrie Curtice
Hello, Apologies if this has already been addressed somewhere, I did a brief search of archives but didn't find quite this issue. I'm writing out an ESRI shapefile. My spdf has a date/time field. Looks like this: > head(spdfUTM@data) krillGMTtime Lat Lon 1 2010-

Re: [R-sig-Geo] Course announcement: Geostatistics & Open-source statistical computing

2011-11-11 Thread D G Rossiter
Tom, Thanks for the information. I guess there are different learning styles. I do not enjoy watching video lectures so I don't inflict them on the students in my distance education course that I am publicizing here (http://www.itc.nl/personal/rossiter/teach/degeostats.html). I don't even watc

Re: [R-sig-Geo] Course announcement: Geostatistics & Open-source statistical computing

2011-11-11 Thread Tomislav Hengl
Hi David, If this can be of any help, at GEOSTAT we started recording/broadcasting all lectures (this was an excellent idea of Ralf Schäfer and his team at Landau). We used the software called Team Viewer (http://www.teamviewer.com/en/download/tv6.aspx). The result was pretty good: http://

Re: [R-sig-Geo] sim kriging

2011-11-11 Thread Edzer Pebesma
On 11/11/2011 02:25 AM, Javier Leon Patino wrote: > 1. I would like to remove a quadratic trend from my elevation dataset before > ordinary kriging. Maybe using surf.ls? > > Would the following work (Z is elevation in file ahd)?: > > depth.ok <- krige(ahd~Z, shp, mask, depth.vgm) this would do