[GRASS-user] sigfile structure

[Stefan Sylla]

Dear all,

I am working on a supervised classification for my Aster satellite images
and created some signature files with i.cluster (image-group contains 9
image-bands) with an output like e.g.: 


#produced by i.cluster
#Class 1
7
0.00726695 0.00908388 0.0651311 0.036496 0.0099363 0.021101 0.0194927
0.00995301 0.00697795 
4.778e-06 
8.10261e-06 2.02925e-05 
6.38384e-06 6.50281e-07 2.72867e-05 
7.41077e-06 1.36557e-05 8.05998e-06 1.31207e-05 
6.16329e-06 1.59079e-05 -9.96889e-07 9.73688e-06 1.35483e-05 
1.24603e-05 2.73096e-05 6.19277e-06 2.09376e-05 2.15804e-05 3.91866e-05 
3.07257e-06 7.9305e-06 -4.96976e-07 4.8541e-06 6.7542e-06 1.07584e-05
3.36715e-06 
7.96907e-06 1.65057e-05 5.58552e-06 1.36388e-05 1.26518e-05 2.41827e-05
6.30724e-06 1.51901e-05 
5.93452e-37 -7.8253e-37 -1.44281e-36 -7.04914e-37 8.48927e-37 -5.28268e-37
-1.45255e-36 5.11738e-37 4.47895e-37 


For the oncoming procedure I need to create a signature file manually, but I
do not understand the whole structure of the file yet.
 
Clear is:
#line 1 = header
#line 2 = name of class
#line 3 = number of pixels in class
#line 4 = mean pixel values of every band (9 bands)

but: what is the meaning of the values in the following lines??

It would be great if anyone could give me a hint on that.

Best regards
Stefan
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