-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello all,
I'm Anne Ghisla and I'm working on integration of R kriging functions into GRASS, porting v.autokrige [0] to wxPython and widening its pool of functions. Code is hosted on SVN GRASS addons repository, see the page of the project on OSGeo wiki for details [1]. = Done = I dedicated this week to documentation and discussion with users and developers. - - Documentation: I'm reading "An introduction to Applied Geostatistics" [2], as I need to understand the theory behind kriging functions provided by R. On wxPython side, wxPython wiki is the main source of information, together with the code of GRASS wxPython interface. - - Community discussion: Feedback on interface design and R has been collected on various mailing lists, mainly in this thread [3]. Also, a group of Portuguese ArcGIS users is interested in giving advice and test the new module. = Planned for next week = I plan to define which functions (and consequently which R packages) are to be included into the module. I plan to first include package automap (a wrapper for gstat), then gstat advanced functions, then geoR (an "ecological vicariant" of gstat), all alvailable on CRAN [4] . This will allow R users to keep using their preferred functions, as kriging results are implementation-dependent. Then I'll work on wxPython interface and get a draft as soon as possible. The interfaces that I use as model are ArcGIS' kriging module and Isatis. I won't replicate their structure, rather see what are the provided features and create v.autokrige interface following Humane Interface guidelines. = Bottleneck(s) = I'm experiencing some difficulties, mainly with wxPython, as I never used it before, and also with kriging, for the same reason :) but I'm not worried nor blocked. Last year GSoC project was a bet and I succeeded, this year it's even harder but I can rely on some more experience and, as always, on mentor and community support. best regards and happy coding to everyone! Anne [0] http://precisiongis.blogspot.com/2008/11/vautokrige.html [1] http://grass.osgeo.org/wiki/V.autokrige_GSoC_2009 [2] "An introduction to Applied Geostatistics", E. H. Isaaks and R. M Srivastava, 1989. [3] https://stat.ethz.ch/pipermail/r-sig-geo/2009-May/005786.html [4] http://cran.r-project.org/web/views/Spatial.html -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkogHBIACgkQzZ3g4YwFFgY+tgCglu6pZHlJAbvm7AO2QB0QQRX6 OTAAn0U3mJYM48DZ5L0bhZDRllYiQPmt =iCTA -----END PGP SIGNATURE----- _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
