similar to: Linking R to GIS

Dear R users, I am using R 5.1 on Windows 2000. Is there a system call or somesuch way of identifying the graphic window which currently has focus and using that information to make it the active device for futher plotting etc. I have done a quick seaqrch in R the archives using 'focus active device' but came up with nothing useful. Any information would be most welcome. Thanks in

Microsoft Windows R users, I am operating Windows 2000 (build2195) with R1.7. It may be pertinent that I am using a dual head screen with the initial RGui filing the entire area of both screens. When starting R I use the .First() function to add menu items to the RGui interface using winMenuAdd() and winMenuAddItem(). The menus do not display until the RGui window is physically manipulated in

Dear listers, I'm having a bad R day. I just can't think of the vectorized equivalent of: for (ii in 1:n) aa[ii] = bb[ii,cc[ii]] Any suggestion received with embarrassment and gratitude Simon Gatehouse CSIRO Exploration and Mining, Newbigin Close off Julius Ave North Ryde, NSW Mail: PO Box 136, North Ryde NSW 1670, Australia

Dear Any, I am trying to initialise Rjava with the objective of running ORCA within R. I am running R1.5.1 on Windows2000 and get the same problem with Sun Java run time jre-1.2.2_013 Java j2re-1.4.1_01 Microsoft Java Virtual Machine Build 3805 .JavaInit() is failing at : .C("s_start_VM", as.character(classPath), as.character(classPath),

Dear R users, I run R on windows 2000 and windows 98 I am seeking opinion, or better still a code snippet, on what might be the quickest, not necessarily the best or preferred way, of making the Windows color selection common dialog available in R. Would it be an executable called with system() or shell() or perhaps a tcltk module or have I missed something obvious? I don't believe that I

The following might be of benefit to those who find themselves in a similar predicament with an apparently corrupted R in Windows 2000. The problem was traced back to a corrupted register in my user profile in Windows 2000 apparently caused by a DLL in Visual Basic installation not self registering correctly. The fix was to copy a new uncorrupted register from the default user. Though some of

R on windows users, I've noted a similar problem reported before [Rd] Rgui.exe crash on Windows 2000 (PR#912) but could not find the solution. I have been running R1.4.1 in windows 2000 since the day it was released with plenty of RAM for my purposes. In two of my .Rdata files I run TclTk as a menuing system to invoke a series of functions for plotting statistics etc. On occasions,

Does anyone know if an R plug-in exists for the GIS package ArcView running under Windows98 or NT? I know such a plug-in is available for S-PLUS. Thanks Karen Kotschy Centre for Water in the Environment Department of Botany University of the Witwatersrand Johannesburg South Africa Tel : +2911 716-2218 Postal address: P/Bag 3 P.O Wits 2050 South Africa

Dear R people, I am wondering how difficult it would be to produce graphs based on maps in R (like "a county is red where x is high"). I reckon this requires the coordinates for the polygons that make up the map and also a mapping to a set of identifiers to assign colours, hatches, etc. Would it be possible to pass R a vector graphics of the map and back out the polygon definitions

The main limitation of the shapefiles package that I put together is that it does not create shapefiles from R objects - rather it only writes shapefiles that have been read into R and manipulated within the constraints of the existing file structure. By this I mean that for example you can change the coordinates of points and write them back out. Or you can add a bunch of blank columns in the

Dear all, 1. How can I compute the intersecting area between 2 polygons ? 2. I have polygons with coordinates in decimal degrees (i.e. 13 deg 30 min = 13.5 decimal degrees). I want to compute their area and get the results in square meters or square kiometers. Can anyone give me a conversion coefficient or a pointer where I can find this information (sorry for this off topic question) ? Thanks

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi! I have a user who is running a Samba server to store data files for his ArcView 3.3 application. Client operating system is Windows XP professional. With Samba2 (2.2.8a) this was working quite fine, it usually took less than a few seconds to load and render one of the GIS presentations with ArcView. We then did an upgrade to Samba3 (3.0.20b)

Hi Gurus! I have a job that is to get randomly samples from point-based GIS data (sp called shape GIS files) under the total sum resctricted. For example, I would like to take random smaples under the 1000 persons in each city. The randomly sampled persons should not be over 1000 any case. Thank you in advance, -- Kum-Hoe Hwang, Ph.D. Phone : 82-31-250-3283 Email : phdhwang@gmail.com

I have no experience with GIS whatsoever. I really know squat about it. I'm currently working on a project to plot locality data for wildlife on a map of Shasta County. This is for a new herpetological club that hopes to track strength of our local herp populations, since it seems evident that in the last 20 years we lost one species of frog and are close to losing another (probably less

Dear All, Does anyone know of any GIS packages for R? I know that there are GIS facilities for S-Plus (eg Arc Info), and am looking for freeware equivalents. Best wishes, Sam Brown ----------------------------------------------------------- Sam Brown sam at zoo.cam.ac.uk Department of Zoology tel +44 1223 330933 Downing Street fax +44 1223 334466

I am not sure a previous e-mail reached the list (no mail aknowledgement from R-boundle etc.). The question was how to write polygon or segment coordinates into a shapefile set or any other ArcGIS supported format. The library shapefiles seems to do something but the documentation is a bit beyond of my mind.... and I cannot get the meaning of the functions write**** and its application to the case

[this went to me instead of the list; MM, your list maintainer] I am digging in the wrong hole I guess. Where can I find R /S routines for spatial statistics? Also has anyone made an R link to a GIS package? Anyone out there who works in this area? Thanks Richard E. Hoskins WA State Department of Health 1102 Quince Street Olympia, WA 98504-7812 richard.hoskins at doh.wa.gov tel: (360) 236 -

I have a simple problem: I need to load a ERSI shapefile of US states and check whether or not a set of points are within the boundary of these states. I have the shapefile, I have the coordinates but I'm having a great deal of difficulty bringing the two together. The problem is the various GIS packages for R do not play well with each other. sp, shapefiles, maptools, etc all use different

Dear anybody dealing with TCLTK on R I'm trying, without any success, to get a simple TCLTK window to remain floating on top of the RGui and RConsol windows when the later have focus. I cannot find reference in the TCKTK documentation and fear that I'm missing something quite fundamental. My objective is to make a simple button populated menu to invoke R functions. I wish the TCLTK menu

Hello R-Group, I am new working with netcdf files and the raster package in R.I am trying to read in a netcdf file using the package "ncdf".I am able to get the lat, lon and parameter I need and can plot using fill.contour.Ultimately, I am trying to create a .asc file to reafd into GIS.I am using the package "raster" to read the parameter.When I read in with