1v.univar.sh(1)                Grass User's Manual               v.univar.sh(1)
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3
4

NAME

6       v.univar.sh   - Calculates univariate statistics on selected table col‐
7       umn for a GRASS vector map.
8

KEYWORDS

10       vector, statistics
11

SYNOPSIS

13       v.univar.sh
14       v.univar.sh help
15       v.univar.sh   [-e]   table=string   column=string     [database=string]
16       [driver=string]   [where=string]   [--verbose]  [--quiet]
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18   Flags:
19       -e
20           Extended statistics (quartiles and 90th percentile)
21
22       --verbose
23           Verbose module output
24
25       --quiet
26           Quiet module output
27
28   Parameters:
29       table=string
30           Name of data table
31
32       column=string
33           Column on which to calculate statistics (must be numeric)
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35       database=string
36           Database/directory for table
37
38       driver=string
39           Database driver
40
41       where=string
42           WHERE conditions of SQL statement without 'where' keyword
43

DESCRIPTION

45       v.univar.sh   -  Calculates  basic  univariate  statistics  for numeric
46       attributes in a data table. It will calculate minimum, maximum,  range,
47       mean,  standard  deviation,  variance,  coefficient of variation, quar‐
48       tiles, median, and 90th percentile. It is closely based on  r.univar.sh
49       and  uses  db.select  to  create a list values for statistical calcula‐
50       tions. This script could be replaced by an updated v.univar.
51       (GRASS Shell Script)
52

NOTES

54       Unless the database and driver are specified, it default the values set
55       in db.connect.
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EXAMPLE

58
59       g.region rast=elevation.10m -p
60       v.random out=samples n=100
61       v.db.addtable samples col="heights double precision"
62       v.what.rast samples rast=elevation.10m col=heights
63       v.db.select samples
64       v.univar.sh samples col=heights
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66

SEE ALSO

68        r.univar, r.univar.sh, v.univar,, db.select, d.vect.thematic
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70        AUTHORS v.univar.sh: Michael Barton, Arizona State University
71
72       and authors of r.univar.sh
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74       Last changed: $Date: 2006-04-28 22:05:58 +0200 (Fri, 28 Apr 2006) $
75
76       Full index
77
78       © 2003-2008 GRASS Development Team
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82GRASS 6.3.0                                                     v.univar.sh(1)
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