[GRASS-user] i.PCA r.info output format

Rebecca Bennett rabennett at ymail.com
Thu Feb 10 06:24:17 EST 2011


Hello all,

I have undertaken a  number of transformations of spectral data using the i.pca 
in both GRASS 6.4 and GRASS 7. Unfortunately when more than 6 bands are used 
r.info cannot display the eigen vectors and % importance
Output for r.info should look like this:


   PC1   1170.12 ( -0.63 -0.65 -0.43 ) [ 88.07% ]
   PC2    152.49 (  0.23  0.37 -0.90 ) [ 11.48% ]

But instead looks like this:

PC1 13770134.87 ( 0.1019, 0.5087, 0.1896, 0.5185, 0.4578, 0.4527, 0.107
6PC2 174134.96 ( 0.6530,-0.1228,-0.0673,-0.1493,-0.0026, 0.0203, 0.7289

with the full metadata being truncated.

As I know the values are being calculated as they display in the i.pca output 
upon completion,
so this appears to be a size issue with the display of r.info?
Is there any way to access the full metadata for the rasters without 
recalculating them?

Many thanks for reading!

Rebecca Bennett
Post-graduate Researcher
Bournemouth University


      
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