search for: scicomp

...ore speed or functionality, how hard would it be to utilize other sparse matrix toolsets from within R, say MUMPS, PARDISO or UMFPACK, that do not have explicit R interfaces? More information on these is available here www.cise.ufl.edu/research/sparse/umfpack/ www.computational.unibas.ch/cs/scicomp/software/pardiso www.enseeiht.fr/lima/apo/MUMPS/ and in these reviews ftp://ftp.numerical.rl.ac.uk/pub/reports/ghsNAGIR20051r1.pdf http://www.cise.ufl.edu/research/sparse/codes/ neither of which reviewed the R Matrix package, unfortunately. Thanks, - John Thaden, Ph.D., U. Arkansas f...

...ities 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 http://www.nceas.ucsb.edu/scicomp/GISSeminar/UseCases/MapProdWithRGraphics/OneMapProdWithRGraphics.html together with examples of my own work. I am finishing with pros and cons about R and I am wondering if you can come up with other examples, or comments. Here they are: Pros: - R is a programming environment well suited for sta...

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]]

Hi , I am writing a function in C and i wish to call it from R. Thanks to this tutorial , this is easily possible - http://www.nceas.ucsb.edu/scicomp/usecases/CreateRPackageWithC Now , i have a server written in R which listens on a port for requests and process the requests. Now what i need is to load a large amount of data in startup of the server. And later this data should be available to any part of the R. So basically i want to maintain...

...//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 [[alternative HTML version deleted]]

...nd 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 > http://www.nceas.ucsb.edu/scicomp/GISSeminar/UseCases/MapProdWithRGraphics/OneMapProdWithRGraphics.htmltogether with examples of my own work. > > I am finishing with pros and cons about R and I am wondering if you can > come up with other examples, or comments. Here they are: > > Pros: > > - R is a programming...

Dear R users, I have a city map in shape file (polygon). I also have some points that I hope to plot them to the city map. The only information I have about those points are their relative longitude and latitude to the city center by miles. Is there a way that R can help me to do this? Thanks. Gary [[alternative HTML version deleted]]