[GRASSLIST:4970] PCA scene variance

GRASS GRASS user
1

How can I get the percentage value of scene variance in GRASS? I search all the documentation, but found nothing.
Also, getting the weight contribution of each band to the PCA would be useful.

Thanks,

--
Gualter Barbas Baptista
gualter@gaia.org.pt ICQ# 8106393 jabber.org: gandhiano

GAIA - Grupo de Acção e Intervenção Ambiental
gaia@gaia.org.pt
Portugal

2

On Sat, Nov 16, 2002 at 03:10:50AM +0000, Gualter Barbas Baptista wrote:

How can I get the percentage value of scene variance in GRASS? I search
all the documentation, but found nothing.

mh, maybe r.univar?

Also, getting the weight contribution of each band to the PCA would be
useful.

No idea - perhaps i.pca needs a modification for that.

Markus