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

Nikos Alexandris nikos.alexandris at felis.uni-freiburg.de
Sun Mar 22 19:00:21 EDT 2009

> 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?

> better yet, use the standard Spearfish SPOT imagery sample dataset
> for the examples. (as m.eigensystem and now i.pca help page
> examples do, probably others)

I will eventually try to re-perform all test with spearfish as well.
Except if someone else, interested in PCA, is willing to do it :-p.

Sorry that I haven't done that before. I preferred to play around with
data from my projects.

Kind regards, Nikos

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