HI LIST!

I have a five years  time serie of NDVI, and i need to obtain the average
value of some polygons in a vector shape named "buffer_xime4", Im trying to
use v.rast.stats into a for cicle as follows:

contador=1
for map in `g.list rast pat=MOD13*A2010*NDVI`
do
v.rast.stats -c map=buffer_xime4 raster=$map column_prefix=$contador
method=average
let contador=contador+1
done

But grass (GRASS GIS 7.0.4) returns this error.

...................................................
....................................................

RROR: Error mientras se ejecutaba: 'ALTER TABLE buffer_xime4 ADD COLUMN
       1_average DOUBLE PRECISION'
ERROR: Unable to add column <1_average DOUBLE PRECISION>.
ERROR: Adding columns failed. Exiting.
Preprocessing input data...
DBMI-SQLite Error del manejador:
Error en sqlite3_prepare():
unrecognized token: "2_average"

DBMI-SQLite Error del manejador:
Error en sqlite3_prepare():
unrecognized token: "2_average"
RROR: Error mientras se ejecutaba: 'ALTER TABLE buffer_xime4 ADD COLUMN
       1_average DOUBLE PRECISION'
ERROR: Unable to add column <1_average DOUBLE PRECISION>.
ERROR: Adding columns failed. Exiting.
Preprocessing input data...
DBMI-SQLite Error del manejador:
Error en sqlite3_prepare():
unrecognized token: "2_average"

DBMI-SQLite Error del manejador:
Error en sqlite3_prepare():
unrecognized token: "2_average"
..................................
......................................
......................................

Could you please tell me what im doing wrong?

thanks in advance.

-- 
Diana Marcela Brito Hoyos
Bióloga

"*El bosque sería muy triste si solo cantaran los pájaros que mejor lo
hacen"*
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