[GRASS-user] calculate 99.9th percentile

[andrew haywood]

Dear List,

I have calculated a band ratio for a aerial photograph and would like to
trim the results to remove some outliers. In particular I would like to
remove the highest and lowest 0.1% pixel values. How can I calculate the
0.1% and 99.9% percentiles. r.univar only allows integer values for
percentiles.

Any help would be greatly appreciated.

Andy
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