NAME
s.info - Reports attribute, label, and other information
about a sites file.
(GRASS Sites Program)
SYNOPSIS
s.info
s.info help
s.info [-qwQ] sites=name
DESCRIPTION
s.info reads the entire sites file and reports header &
label information, type of category, number of attributes &
dimensions, and min and max values for each dimension,
attribute, or category. For best results sites should
conform to the multiple attribute format as specified in
floating point GRASS.
This program can be run non-interactively or interactively.
If the user gives the name of a GRASS site_lists map and
(optionally) specifies other parameter values on the command
line the program will be run non-interactively; any
parameter values left unspecified are set to their default
values (see below). Alternately, the user can type simply
s.info on the command line; in this case, the program will
prompt the user for parameter values using the standard
GRASS parser interface described in the manual entry for
parser.
Example output.
COMMAND LINE OPTIONS
Flags
-q Load quietly
-w Only count sites in current window for min/max.
-Q Show quartiles for decimal attributes
Parameters
sites
Name of sites file.
BUGS
If the -Q flag is given, the sites are cached in order to
determine quartile values; otherwise the sites are read
sequentially without caching. Therefore, use of the -Q
option may result in an out-of-memory error for very large
sites files.
The algorithm used to find quartile values matches that used
by s.univar, so if the number of sites is not evenly
divisible by 4, the resulting Q1 and Q3 values may not exist
in the data, but is an average of the two neighboring
values. Likewise, if the number of sites is not evenly
divisible by 2, the resulting median will be an average of
its neighbors.
SEE ALSO
d.sites d.siter d.sites.qual s.univar
AUTHOR
Bill Brown, UI GMS Laboratory