[GRASSLIST:2357] NDVI...why i get an all 0 raster file?

Luis Coronado guaiacum at racsa.co.cr
Sun Aug 19 23:16:36 EDT 2001

Hi there people!.
Im trying to add several ratio bands to my ETM+ data set of the north
region of Costa Rica. I calculated all the ETM+#/ETM+# with
mapcalculator.sh and r.mapcalc, and both work fine. But, when trying to
obtain the NDVI, the result was a raster file full of 0's.
I now that this isnt the result because i also did the same with IDRISI.

Any tip here?
Luis Coronado Chacon
guaiacum at sol.racsa.co.cr

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