NAME
s.univar - Univariate statistics for a GRASS sites list.
(GRASS Sites Program)
SYNOPSIS
s.univar
s.univar help
s.univar [-aglq]
sites=name
[field=value]
DESCRIPTION
s.univar calculates univariate statistics of sites
lists. This includes the number of sites, mean, standard
deviation, coefficient of variation, mininum, first
quartile, median, third quartile, and maximum.
OPTIONS
Flags:
- -a
- Use all sites found in the named sites file, rather than
limiting output to sites falling within the current geographic region.
- -g
- Print the statistics in shell script style (similar to g.region).
- -l
- Use site descriptions (category labels) for z values.
Sites must be in the (E|N|#n desc) format for this to work.
Default format is just three pipe-separated floating point
numbers (E|N|desc).
- -q
- Quiet. Cut out the chatter.
Parameters:
- sites=name
- Name of an existing sites file.
- field
- Number of z-field attribute to use for calculation
- default: 1
SEE ALSO
s.normal,
r.univar,
BUGS
Needs to do as many calculations as possible without storing individual site
records (requires a lot of memory).
BUGS
Please send all bug fixes and comments to the author
or the grass development team.
http://www.geog.uni-hannover.
AUTHOR
James Darrell McCauley
<darrell@mccauley-usa.com>,
when he was at:
Agricultural
Engineering
Purdue University
Last changed: $Date$