[Qgis-user] getting statistics from a raster layer

[Nick Hopton]

One other thing, you want to collect statistics for your clipped raster, so
when you clip the raster make sure that you tick 'no data value' and enter a
value of (say) -30000. This will set the value of the pixels in your clipped
raster that lie outside of your area of interest to 'null' and they will be
ignored when calculating statistics (which is what you want).

I think the correct statistics for your area of interest are as follows: 

STATISTICS_MINIMUM=20.97500038147
STATISTICS_MAXIMUM=22.629600524902
STATISTICS_MEAN=21.829234117232
STATISTICS_STDDEV=0.40600423541182

Nick.  



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