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

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

10       vector, statistics
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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]
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18   Flags:
19       -e  Extended statistics (quartiles and 90th percentile)
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21   Parameters:
22       table=string
23           Name of data table
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25       column=string
26           Column on which to calculate statistics (must be numeric)
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28       database=string
29           Database/directory for table
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31       driver=string
32           Database driver
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34       where=string
35           WHERE conditions of SQL statement without 'where' keyword
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DESCRIPTION

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

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

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52       g.region rast=elevation.10m -p
53       v.random out=samples n=100
54       v.db.addtable samples col="heights double precision"
55       v.what.rast samples rast=elevation.10m col=heights
56       v.db.select samples
57       v.univar.sh samples col=heights
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59

SEE ALSO

61        r.univar, r.univar.sh, v.univar,, db.select, d.vect.thematic
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63        AUTHORS v.univar.sh: Michael Barton, Arizona State University
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65       and authors of r.univar.sh
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67       Last changed: $Date: 2006/04/28 20:05:58 $
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69       Full index
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73GRASS 6.2.2                                                     v.univar.sh(1)
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