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NAMEdb.univar - Calculates univariate statistics on selected table column.KEYWORDSdatabase, statistics, attribute tableSYNOPSISdb.univardb.univar --help db.univar [-eg] table=name column=name [database=name] [driver=name] [where=sql_query] [percentile=float[,float,...]] [--help] [--verbose] [--quiet] [--ui] Flags:
Parameters:
DESCRIPTIONdb.univar calculates basic univariate statistics for numeric attributes in a data table. It will calculate minimum, maximum, range, mean, standard deviation, variance, coefficient of variation, quartiles, median, and 90th percentile. It uses db.select to create list values for statistical calculations. NOTES If the database and driver are not specified, the default values set in db.connect will be used.EXAMPLEIn this example, random points are sampled from the elevation map (North Carolina sample dataset) and univariate statistics performed:g.region raster=elevation -p v.random output=samples n=100 v.db.addtable samples column="heights double precision" v.what.rast samples raster=elevation column=heights v.db.select samples db.univar samples column=heights SEE ALSOv.db.univar, r.univar, v.univar, db.select, d.vect.thematicAUTHORMichael Barton, Arizona State Universityand authors of r.univar.sh SOURCE CODEAvailable at: db.univar source code (history)Main index | Database index | Topics index | Keywords index | Graphical index | Full index © 2003-2021 GRASS Development Team, GRASS GIS 7.8.6 Reference Manual
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