search for: statsgrass

Displaying 11 results from an estimated 11 matches for "statsgrass".

2003 Oct 31
2
Therotical basis of Kriging
hello I want to know about therotical basis of Kriging in elemantary level. I will appreciate if anyone sends me address,link,e-documents, etc.. kind regards -- Ahmet Temiz General Directory of Disaster Affairs Ankara TURKEY ______________________________________ Inflex - installed on mailserver for domain @deprem.gov.tr Queries to: postmaster at deprem.gov.tr
2009 Jun 11
1
GRASS raster data processing
Hi, I just imported two raster maps into R using the SPGRASS6 package, one containing elevation data and the other containing an erosion index: Kar_inc <-readRAST6("Incis_Kar", plugin=FALSE) Kar_dem <- readRAST6("DEM_Kar", plugin=FALSE) I just wanted to make a xy plot of erosion parameter vs elevation. How does this work? I don't get how to handle
2007 Jun 13
1
installing GRASS-R packages
Hi, I tried to install R packages required for the GRASS-R interface by using the following command (copied from http://www.geog.uni-hannover.de/grass/statsgrass/grass6_r_install.html): /install.packages (c("sp", "spgrass6","rgdal","maptools"), dependencies =TRUE)/ rgdal package was installed successfully; There were problems to find 'sp' and 'maptools' packages. The error message was /: dependencies...
2005 Feb 22
1
Rdbi and ODBC
I have been using RODBC for a while with no complaints (R 2.0.1 patched under WinXP), then I saw a link (http://grass.itc.it/statsgrass/r_and_dbms.html) showing that Rdbi claims to run a query in 5 seconds that takes RODBC 4.3 minutes. That was hard enough for me to believe that I wanted to try some tests myself, but I cannot get Rdbi to connect to my ODBC database. Here is what works for RODBC for my setup: conn <- odbcConnec...
2005 Jul 07
2
about image() function in R and colors
Hi! I've got a map in R imported from a GIS (GRASS) as a vector of factors. So I've got 20 different levels in the map and I've created a vector of custom colors of exactly 20 colors in lenght. I'm trying to use image() (really plot.grassmeta() that call image()) to plot the map with those colors but it doesnt work and the colors are changed. I would like that all points
2003 Jan 10
1
GRASS/R interface problem
Hi all, In my version of the R package GRASS (pre-4) I only manage to export an R object to GRASS with the name "akspl" which, if I am not wrong, is only a sample name in the example(). It goes that way: rast.obj->akspl rast.put(G, akspl, lname="rast.obj", ...) Is that a known problem or have I done something wrong anywhere? Miha Staut
2005 Feb 01
2
sgeostat
Hi, list, I am using 'sgeostat' package by Albrecht Gebhardt and I am trying to put a correlation coefficient of some kind on the lagplots. Is there a possiblity to do so? Thanks Mahdi -- ----------------------------------- Mahdi Osman (PhD) E-mail: m_osm at gmx.net ----------------------------------- GMX im TV ... Die Gedanken sind frei ... Schon gesehen? Jetzt Spot online ansehen:
2001 Jan 18
0
Release of R/GRASS GIS interface for R >= 1.2.x
...an adjunct to reading chapters 5 and 6 of the book. The data set help file details how the coordinate data have been re-projected to UTM. The release has been tested with GRASS 5beta8, 5beta10, and the 6 January 2001 snapshot - further details may be found at: http://www.geog.uni-hannover.de/grass/statsgrass/index.html. Please note that comments there about using "R CMD check" to test the package apply to earlier versions of R: to run the check (running all the examples in the help files) with R > 1.2.0, you need to: 1) unpack the gzipped tar file (tar zxvf GRASS_0.1-6.tar.gz) in a suitab...
2004 Oct 23
2
JDBC DB access in R
Hello, i see packages referencing using ODBC access to databases via R, are there any packages that use JDBC to submit SQL to a database and return into a data frame? -zubin
2002 Mar 20
1
cannot open file .RDataTmp
Dear list, since I have installed GRASS_0.1-8.tar.gz (devel) with R 1.4.1 on RedHat7.1 Linux I get the following message when I want to save the workspace image: -------------------------------------------------- Save workspace image? [y/n/c]: y Error in file(file, "wb") : cannot open file `.RDataTmp' ------------------------------------------------- Where can I find the
2005 Feb 22
6
rodbc or unixodbc error
Hi, I'm trying to establish a connection to a MySQL database, and am using the rodbc package for it. This is in a GNU/Debian Linux box, with the corresponding Debian unstable packages. I can login to my MySQL databases from any shell and directory, so the problem is probably not there. Here's an example of what I'm doing: R> odbcConnect("test",