[GRASS-stats] Re: [GRASS-user] Testing i.pca ~ prcomp(), m.eigensystem ~ princomp()

Nikos Alexandris nikos.alexandris at felis.uni-freiburg.de
Tue Mar 10 15:20:06 EDT 2009


 Nikos:
> > I've started the PCA grass-wiki page. I am trying to build it... step by
> > step. Expert advice is always welcome and highly appreciated.
> > http://grass.osgeo.org/wiki/Principal_Component_Analysis


 Roger:
> Good, thanks. There you say that you are using "some MODIS surface 
> reflectance products". I guess it will be easier to check things if the 
> data (GRASS location) are available, so that others can try the same 
> calculations. Would it be possible to make one or more test sets 
> available, and link them from thw Wiki?


Absolutely! I need some time though (=some days?, currently
overloaded :-).

Kindest regards, Nikos

P.S. I was informed today that I have to wait another 2 weeks to get the
book "Applied Spatial Data Analysis with R" :-(



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