similar to: Global variable in the C code used to create R extension

R has very good GUI packages that I have used - R Commander RCmdr and Rattle rattle . Since I work on multiple packages with constraints of time, I almost always use the GUI rather go through the intricacies of command line . The log of these GUIs shows the relevant R command that was used, so you can actually learn the language also. I have written about the ease of learning R , if you begin

Some tutorials and examples may help. http://www.zoology.ubc.ca/~kgilbert/mysite/Miscellaneous_files/R_MakingMaps.pdf http://coulmont.com/cartes/rcarto.pdf https://pakillo.github.io/R-GIS-tutorial/ http://www.milanor.net/blog/maps-in-r-plotting-data-points-on-a-map/ https://www.youtube.com/watch?v=PTti7OMbURo https://www.nceas.ucsb.edu/scicomp/usecases/CreateMapsWithRGraphics -- Best, GG

Hi, I am doing a very informal presentation for my office about R capabilities to deal with and analyze spatial data, display data and maps, and connections with GIS. I've used in my presentation info from the CRAN, the spatial Task view, and the more striking graphics examples from http://addictedtor.free.fr/graphiques/thumbs.php and NCEAS

Hello: I would like to superimpose vector polygons (state outlines) from a Shape file on top of a satellite image, imported into a SpatialGridDataFrame from GEOTIFF via gdal_translate and readGDAL. When I plot polygon and point shape files in R, into SpatialPointDataFrame and SpatialPolygonDataFrame, the two feature sets line up geographically, so it seems logical that a SpatialGridDataFrame

Hello R-users, during one of my analyses that involve a SVD, I get the following error message: Error in La.svd(x, nu, nv, method) : error code 1 from Lapack routine dgesdd With a search on the R web site, I only found references to error codes 17 and 3 for this particular routine. I also found the Lapack web site, but could not find a list of the possible error messages. If somebody knows what

A preliminary release of my postgres package for R is at http://www.nceas.ucsb.edu/~keitt/R/postgres.tgz It allows one to read and write data frames to and from a postgres database, execute queries and has an experimental "proxy" interface that allows you to access postgres tables using the standard, local data frame model. All accesses to the data frame generate the appropriate

A preliminary release of my postgres package for R is at http://www.nceas.ucsb.edu/~keitt/R/postgres.tgz It allows one to read and write data frames to and from a postgres database, execute queries and has an experimental "proxy" interface that allows you to access postgres tables using the standard, local data frame model. All accesses to the data frame generate the appropriate

Greetings: When using R within GRASS6, and loading the rgdal library, I encounter an error loading a specific version of the HDF5 library that does not occur when I perform the same operation in R 'outside' of GRASS6: Here is a record of the error on my ubuntu system: ---------- Start --------- reeves at wallace:~$ grass2 Cleaning up temporary files..... Starting GRASS ... Welcome to

It appears that "break" will break from the outermost enclosing loop not the innermost loop. Is it a bug or language feature? Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/

Greetings: We are evaluating the performance of R matrix algebra es as we port a MATLAB R14 script into R. The MATLAB code basically evaluates the AX=B system on sparse matrices that result in output matrices of 100 to 1,000,000 rows/columns. Our R prototype script uses spase base matrices and the methods qr() and qr.coeff(). The following statements are called inside a doubly-nested loop: G

Hi there, this is my first post to the list. I'm a newcomer to the linux world. I started using it on a regular basis on May and I must say I'm quite comfortable with it, even if I have to re-learn a lot of things. But this is not a problem, I will improve my knowledge with time. My main problem now is that I bought myself a new computer (described at the end of this e-mail) and I was

If you have had problems with the latest configure script in RPgSQL, please try the version attached to this message. Let me know if you have any problems. Thanks. Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/ -------------- next part

If you have had problems with the latest configure script in RPgSQL, please try the version attached to this message. Let me know if you have any problems. Thanks. Tim -- Timothy H. Keitt National Center for Ecological Analysis and Synthesis 735 State Street, Suite 300, Santa Barbara, CA 93101 Phone: 805-892-2519, FAX: 805-892-2510 http://www.nceas.ucsb.edu/~keitt/ -------------- next part

The current INSTALL script calls ./configure if it exists when installing packages, but does not check the return value from configure. I have my configure script abort under certain conditions and it would be nice if the INSTALL script would stop at that point. Also, is there an autoconf macro for testing for gnu make? Tim -- Timothy H. Keitt National Center for Ecological Analysis and

I'd like to suggest a small feature be added to R. It would be nice if "load" and "save" had function hooks for object initialization and finalization, e.g., load.hook <- function(x) UseMethod("load.hook") save.hook <- function(x) UseMethod("save.hook") These would then be called on each object saved or loaded. The default method would do

Perhaps it is just that I don't even know the correct term to search for, but I can find nothing that explains how to wrap around from the end to a start of a row in a matrix. For example, you have a matrix of 2 years of data, where rows are years, and columns are months. month.data = matrix(c(3,4,6,8,12,90,5,14,22, 8), nrow = 2, ncol=5) I would like to take the average of months 5:1 for

Dear R-users. I eventually bought myself a new computer with the following characteristics: Processor AMD ATHLON 64 DUAL CORE 4000+ (socket AM2) Mother board ASR SK-AM2 2 Ram Corsair Value 1 GB DDR2 800 Mhz Hard Disk WESTERN DIGITAL 160 GB SATA2 8MB I'm a newcomer to the Linux world. I started using it (Ubuntu 7.10 at work and FC4 on laptop) on a regular basis on May. I must say I'm

Dear R-users. I eventually bought myself a new computer with the following characteristics: Processor AMD ATHLON 64 DUAL CORE 4000+ (socket AM2) Mother board ASR SK-AM2 2 Ram Corsair Value 1 GB DDR2 800 Mhz Hard Disk WESTERN DIGITAL 160 GB SATA2 8MB I'm a newcomer to the Linux world. I started using it (Ubuntu 7.10 at work and FC4 on laptop) on a regular basis on May. I must say I'm

Congrats on the new release. The new package management tools are great! A couple of quick comments: 1) it might be nice to add an optional "Autoloads:" field to the description (the package does not depend on these other packages, but will autoload them if certain functions are called). 2) on page 3 of the R-exts document, it says to set PKG_* flags in 'Makeconf'; I think

hi R-users: I have some data related with geographical information. I wonder how to plot some data (in contour,shaded or scatter) on a map. Could anyone tell me which package or reference or examples I can learn ? thank you . -- TANG Jie Email: totangjie@gmail.com [[alternative HTML version deleted]]