DESCRIPTION
v.db.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.
(GRASS Shell Script)
NOTES
Unless the database and driver are specified, it default the values set in
db.connect.
EXAMPLE
g.region rast=elevation.10m -p
v.random out=samples n=100
v.db.addtable samples col="heights double precision"
v.what.rast samples rast=elevation.10m col=heights
v.db.select samples
v.db.univar samples col=heights
SEE ALSO
r.univar,
v.univar,,
db.select,
d.vect.thematic
AUTHOR
Michael Barton, Arizona State University
and authors of r.univar.sh
Last changed: $Date: 2007-06-23 22:41:37 +0200 (Sat, 23 Jun 2007) $