[GRASS5] i.pca and masks

[Gualter Barbas Baptista]

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I should further add that the i.pca on the different masks (and without
mask) looks exactly the same, so I don't really think he's using the
mask for the input.

Gualter Barbas Baptista wrote:

| I did some PCA on images using different masks and only then I noticed
| that in the end I got the full image, without a mask. However in the man
| page it says:
|
| The current geographic region definition and mask settings are respected
| when reading the input raster map layers
|
| What does this mean? That it uses the mask only for making the pca
| calculations, but then shows up the whole image?
| If I would want to build up a image on the mask area (hard disk
| space...), would it be possible?
|
| Thanks,
|
| --
| Gualter Barbas Baptista
| gualter at gaia.org.pt    ICQ# 8106393    jabber.org: gandhiano
|
| GAIA - Grupo de Acção e Intervenção Ambiental
| gaia at gaia.org.pt
| Portugal


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

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

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

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