ОПИСАНИЕ
v.univar.sh - 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 is closely based on r.univar.sh and uses db.select to create
a list values for statistical calculations. This script could be replaced by
an updated v.univar.
(GRASS Shell Script)
ПРИМЕЧАНИЯ
Unless the database and driver are specified, it default the values set in
db.connect.
ПРИМЕР
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.univar.sh samples col=heights
СМ. ТАКЖЕ
r.univar,
r.univar.sh,
v.univar,,
db.select,
d.vect.thematic
AUTHORS
v.univar.sh: Michael Barton, Arizona State University
and authors of r.univar.sh
Last changed: $Date: 2006-04-28 15:05:58 -0500 (Пт, 28 апр 2006) $
Автор перевода