[GRASS-dev] Single row computational region
Nikos Alexandris
nik at nikosalexandris.net
Wed Dec 6 08:36:13 PST 2017
* Nikos Alexandris <nik at nikosalexandris.net> [2017-12-06 12:11:32 +0100]:
>Dears, bear with me please.
[..]
># raster profile?
>r.univar -g lst_LC81920282013103LGN01
># returns nothing.
>
># again, for the whole of it
>r.univar -r lst_LC81920282013103LGN01
>100%
>total null and non-null cells: 2115
>total null cells: 969
>
>Of the non-null cells:
>----------------------
>n: 1146
>minimum: 21.1276
>maximum: 38.3413
>range: 17.2137
>mean: 30.9546
>mean of absolute values: 30.9546
>standard deviation: 2.96871
>variance: 8.81323
>variation coefficient: 9.59053 %
>sum: 35473.97070341
>
>
>Is this expected? Continuing further with
>
>g.region -g s=s-$nsres
>
>returns nothing before up until the region becomes 7 rows tall. Then
>
>r.univar -g lst_LC81920282013103LGN01
>
>returns
>
>n=33
>null_cells=282
>cells=315
>min=27.1068085576393
>max=31.2078924764929
>range=4.10108391885359
>mean=29.504924461646
>mean_of_abs=29.504924461646
>stddev=1.20251677356142
>variance=1.44604659069658
>coeff_var=4.07564769441995
>sum=973.662507234318
I've bitten some NULL region. It works fine with another sample.
Sorry for the noise.
Nikos
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