r.quant - Produces the quantization file for a floating-point map.

Authors

       Michael Shapiro, Olga Waupotitsch, U.S.Army Construction Engineering Research Laboratory

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.

   Quantrules
       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 and cat2 are integers. If cat2 is missing,  it
       is taken to be equal to cat1. All values can be "*" which means infinity.

Keywords

       raster, statistics, quantization

Name

r.quant  - Produces the quantization file for a floating-point map.

Note

       It is an error to specify both basemap and fprange.

Source Code

       Available at: r.quant source code (history)

       Accessed: Friday Apr 04 01:19:25 2025

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       © 2003-2025 GRASS Development Team, GRASS GIS 8.4.1 Reference Manual

GRASS 8.4.1                                                                                      r.quant(1grass)

Synopsis

r.quantr.quant--helpr.quant    [-tr]   input=string[,string,...]    [rules=name]     [basemap=string]     [fprange=dmin,dmax]
       [range=min,max]   [--help]  [--verbose]  [--quiet]  [--ui]

   Flags:-t
           Truncate floating point data

       -r
           Round floating point data

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   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