table of contents
r.quant(1grass) | GRASS GIS User's Manual | r.quant(1grass) |
NAME¶
r.quant - Produces the quantization file for a floating-point map.
KEYWORDS¶
raster, statistics, quantization
SYNOPSIS¶
r.quant
r.quant --help
r.quant [-tr] input=string[,string,...]
[rules=name] [basemap=string]
[fprange=dmin,dmax] [range=min,max]
[--help] [--verbose] [--quiet] [--ui]
Flags:¶
Parameters:¶
- input=string[,string,...] [required]
-
Raster map(s) to be quantized - rules=name
-
Path to rules file ("-" to read from stdin) - basemap=string
-
Base map to take quant rules from - fprange=dmin,dmax
-
Floating point range: dmin,dmax - range=min,max
-
Integer range: min,max
DESCRIPTION¶
r.quant produces the quantization file for a floating-point map.
The map parameter defines the map for which the rules are to be created. If more than one map is specified, then this implies that the floating-point range is the minimum and maximum of all the maps together, unless either basemap=map or fprange=min,max is specified.
Quant rules¶
The quant rules have to be entered interactively.
If rules is specified, the input has the form:
value1:value2:cat1:[cat2]
where value1 and value2 are floating point values and cat1 cand cat2 are integers. If cat2 is missing, it is taken to be equal to cat1. All values can be "*" which means infinity.
NOTE¶
It is an error for both basemap and fprange to be specified.
SEE ALSO¶
r.support, r.null
AUTHOR¶
Michael Shapiro, Olga Waupotitsch, U.S.Army Construction Engineering Research Laboratory
SOURCE CODE¶
Available at: r.quant source code (history)
Accessed: Saturday Jul 27 17:08:17 2024
Main index | Raster index | Topics index | Keywords index | Graphical index | Full index
© 2003-2024 GRASS Development Team, GRASS GIS 8.4.0 Reference Manual
GRASS 8.4.0 |