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GraspeR is a porting of GRASP written for S-Plus (GRASP-S) by A. Lehmann, J.R. Leathwick and J.McC. Overton at the Landcare Research Institute (New-Zeland). It uses the mgcv library written by Simon Wood that implements GAMs into R. Look at the quick help (very quick) here
GraspeR is a general method for making spatial predictions of variable of interest (VOI) using
point surveys of the VOI and spatial coverages of important environmental drivers (IED). It consists of a set
of functions that :
GraspeR is a cross-platform porting. It has been tested so far on Microsoft Windows and Linux. To work, GraspeR just needs a recent version of R and of Tcl/Tk if you want to use the packed graphical user interface. Look at the screenshots for details on the GUI
GraspeR has been released under the terms of the GNU GENERAL PUBLIC LICENSE
GraspeR 0.3-4 is out (at this time only for UNIX systems). It includes linking with GRASS. You can download GraspeR from here.
Aknowlegments: Simon Wood for comments and explainations on the theory behind the mgcv package he wrote, Anthony Lehmann for writing GRASP for S-Plus and teaching of S-Plus and R, Jake McC. Overton for comments on the method used and Philippe Grosjean for the Windows package he compiled for me
The GraspeR project will shortly be renamed GRASP-R.
It is now hosted by sourceforge.net
You can find the project home here
You can download the GRASP-R sources via cvs. Look here for details.