R: a language and environment for statistical computing
R is a free software environment for statistical computing and graphics. It can be used to generate species distribution models using as a base data such as those made available through GBIF.
R Development Core Team
R Foundation for Statistical Computing, Saturday, January 1, 2011 (All day)
R is a system for statistical computation and graphics. It consists of a language plus a run-time environment with graphics, a debugger, access to certain system functions, and the ability to run programs stored in script files. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS.
R Development Core Team (2011), R: A Language and Environment for Statistical Computing. Vienna, Austria : the R Foundation for Statistical Computing. ISBN: 3-900051-07-0. Available online at http://www.R-project.org/.
GNU General Public License (GPL) - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
R Foundation for Statistical Computing