I seem to be getting an error with r.univar when using a zone file. I run, g.region as follows: g.region -a raster=cahpa_i0apr_05216_nc_remapped_nc_1@prcp05216ijk res=0.22
Then r.univar (see below). There are 6 categories in the zone file, but r.univar reports null cells for category 1? Initially I thought it was me not setting g.region correctly, but I can't seem to get it to work as expected. Any ideas would be welcome. Cheers, Richard r.univar map=cahpa_i0apr_05216_nc_remapped_nc_1@prcp05216ijk zones=BMR_bndry_epsg4326_rasterized@prcp05216ijk zone 1 Category 1 total null and non-null cells: 4 total null cells: 0 Of the non-null cells: ---------------------- n: 4 minimum: 3.5821e-05 maximum: 7.74327e-05 range: 4.16117e-05 mean: 5.6472e-05 mean of absolute values: 5.6472e-05 standard deviation: 1.53325e-05 variance: 2.35085e-10 variation coefficient: 27.1506 % sum: 0.000225888012209907 zone 2 Category 2 total null and non-null cells: 2 total null cells: 0 Of the non-null cells: ---------------------- n: 2 minimum: 3.53024e-05 maximum: 6.23036e-05 range: 2.70012e-05 mean: 4.8803e-05 mean of absolute values: 4.8803e-05 standard deviation: 1.35006e-05 variance: 1.82266e-10 variation coefficient: 27.6635 % sum: 9.76059491222259e-05 zone 3 Category 3 total null and non-null cells: 1 total null cells: 0 Of the non-null cells: ---------------------- n: 1 minimum: 8.14342e-05 maximum: 8.14342e-05 range: 0 mean: 8.14342e-05 mean of absolute values: 8.14342e-05 standard deviation: 0 variance: 0 variation coefficient: 0 % sum: 8.14341983641498e-05 zone 4 Category 4 total null and non-null cells: 3 total null cells: 0 Of the non-null cells: ---------------------- This is my zones file: Type of Map: raster Number of Categories: 6 | Data Type: CELL | Rows: 231 | Columns: 231 | Total Cells: 53361 | Projection: Latitude-Longitude | N: 35:38:24N S: 15:10:48S Res: 0:13:12 | E: 140:34:48E W: 89:45:36E Res: 0:13:12 | Range of data: min = 1 max = 6 | | Data Source: | Vector Map: BMR_bndry_epsg4326@prcp05216ijk | Original scale from vector map: 1:1 | | Data Description: | generated by v.to.rast | | Comments: | v.to.rast input="BMR_bndry_epsg4326@prcp05216ijk" layer="1" type="ar\ | ea" output="BMR_bndry_epsg4326_rasterized" use="cat" value=1 memory=\ | 300 | This is the raster file: Type of Map: raster Number of Categories: 0 | Data Type: FCELL | Rows: 230 | Columns: 230 | Total Cells: 52900 | Projection: Latitude-Longitude | N: 35:29:24N S: 15:06:36S Res: 0:13:12 | E: 140:29:24E W: 89:53:24E Res: 0:13:12 | Range of data: min = 0 max = 0.002821672 | -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Searching-for-technical-details-on-how-v-rast-stats-calculates-means-and-other-statistics-tp5188809p5188865.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
