search for: grasses

Hello all, I'm having troubles getting R to load data from GRASS 7. I suspect I have installed something wrong, but can't figure out what. Any suggestions for what I could look for or how to trouble shoot this? Thanks in advance for any help! After having other issues last week, we have upgraded Debian to the testing version. The other problems are solved, but now I can't get

Hi, I'm running R 2.0 installed from the source port on FreeBSd 4.10 and I'm having trouble installing the GRASS package. Following is the procedure plus errors: > options(CRAN="http://cran.us.r-project.org") > install.packages("GRASS") <download snipped> downloaded 186Kb * Installing *source* package 'GRASS' ... ** libs cc

Dear friends I am not sure that I am conducting this analysis correctly. I would really appreciate if someone can verify what I've done. I conducted repeated measures ANOVA for some bugs data. These bugs were measured repeatedly over 32 weeks at the same trapping plots. I want to test a full model for the effect of time ("week") (the "within subject" variable), and the

Hi Sorry for crossposting, but I think this can be of interest for GRASS and R users. I am planning to write a package to make the use of GRASS from R easier. The idea is to wrap the system call to execute the GRASS command into an R command of the same name. e.g: r.to.vect <- function(..., intern=TRUE, ignore.stderr=FALSE) { comm <- paste( "r.to.vect ", ...,

I am trying to compile the r.stream* set of addons. Ubuntu 9.10 64 bit I have installed the grass packages from the repositories I have also compiled grass 6.5 from source. I have taken the r.stream* from the addons svn and placed the sources in the grass source tree - in the raster file I run make distclean then navigate to the raster/r.stream* file run make and get this error message:

Release of revised version of R/GRASS GIS raster and sites data interface. The latest version of the R contributed package "GRASS", release 0.1-6, may be downloaded from CRAN (cran.r-project.org) - contributed packaged section, "Devel" directory, file: GRASS_0.1-6.tar.gz. It may also be downloaded from ftp://reclus.nhh.no/pub/R/GRASS_0.1-6.tar.gz. This version is intended for

Dear List, I am realtively inexperienced so i apologise in advance and ask for understanding in the simplicity of my question: I have data on the amount of grass per km in a cell ( of which i have lots) "grass" and for each cell i have x/y coordinates - required due to spatial autocorrelation Cells can be classfied in a hierarchical nature into AREAS and STATES i.e Cell 1, Cell 2,

Hi, Does anyone use spgrass6 with GRASS 7 and R? The documentation for spgrass6 states it is for GRASS6+, and if I recall correctly I saw Dr. Bivand mention that it works well with GRASS7. (There were some threads from 2009 where spgrass6 wasn't working with GRASS7 yet, but I assumed that information was out of date.) So I figured I was doing something wrong with the library and package

Hi all, I have a data frame with sequences of x and y from a map. I would like to know it both ways: 1. How to make a matrix from that; 2. how to make a data frame of all points in a map. Probably it is a silly question, but please tell me where to read about it or tell me how to do it. Miha Staut

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

Hi, everybody! i created a imagem by kriging using geoR package. I imported points from GRASS("zn", after converted to geodata "zn_geo"), the border "zn_border" and a raster mask. Then i interpolated the points by kriging and created a raster image. Now, i need export this image back to GRASS to use it in the module r.mapcalc. I can't do it. I tried use

Dear list, I have a problem to install the GRASS_0.1-4.tar.gz on RedHat7.1 Linux. The gmake5 is missing. But I am not quite sure what it is? Is it a gnu version of MAKE? I could not locate it on my system and I do not know what is really meant. Any experience? I get the following message: ---------------------------------------------------- bash-2.04$ R CMD INSTALL -l

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

Dear all, This relatively routine analysis has left me frustrated and in a rut. I have a dataset (data1), which I subset in order to remove rows where HabitatDensity="Med". This dataset looks correct when I call it up, however, when I create a table out of the new subset (data2), my table continues to show the "Med" information as 0. This is a problem because I need a

Dear list, I get the following error message when installing the package GRASS. missing link(s): interp.new missing link(s): vgram Krig predict.Krig predict.se.Krig See also below for the full installation message. What does this mean exactly? Regards, Ulrich ------------------------------------------------------------------ > R CMD INSTALL

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

Dear users, I got this problem and i don't have a clue of what it could be happening... The context: i'm running a loop in which i extract information from a raster map (I work with GRASS and R, using spgrass6 package), and rearrange it to create a matrix. I've tried it with small maps and it works smoothly, but in large maps I have to resort to saving data in the hard disk regularly

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

Hello, I run R inside GRASS and tried to obtain values of a raster file inside GRASS but this raster image contains only a few relevant pixel and approx. 1.5 Mill. NA's, I did G <- gmeta() sites1 <- rast.get(G, "sites1") df.sites1 <- data.frame(east(G), north(G), sites1, na.action=na.omit) Error in as.data.frame.default(x[[i]], optional = TRUE) : can't

Full_Name: Markus Neteler Version: 1.0.0 OS: Linux 2.2.10/i686 Submission from: (NULL) (130.75.72.37) Hi, I wanted to "check" the R.GRASS GIS interface from Roger Bivand: http://www.geog.uni-hannover.de/grass/statsgrasslist.html using R CMD check --vsize=10M GRASS but: [error message shortened] > G <- gmeta() Error: heap memory (6144 Kb) exhausted [needed 1024 Kb more]