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d.correlate(1grass)         GRASS GIS User's Manual        d.correlate(1grass)

NAME
       d.correlate   -  Prints  a graph of the correlation between raster maps
       (in pairs).

KEYWORDS
       display, statistics, raster, diagram, correlation

SYNOPSIS
       d.correlate
       d.correlate --help
       d.correlate  map=name[,name,...]   [--help]    [--verbose]    [--quiet]
       [--ui]

   Flags:
       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       map=name[,name,...] [required]
           Name of raster map(s)

DESCRIPTION
       d.correlate  displays graphically the results of a r.stats analysis run
       on two raster map layers. This module highlights  the  correlation  (or
       lack of it) among data layers (scattergram).

       The  results  are  displayed  in the active display frame on the user’s
       graphics monitor. d.correlate erases the active frame before displaying
       results. If no graphics monitor is open, a file map.png is generated in
       the current directory.

NOTES
       If three or four map layers are specified, the correlation  among  each
       combination of two data layers is displayed.

EXAMPLE
       Scatterplot   of  two  LANDSAT  TM7  channels  (North  Carolina  sample
       dataset):

       g.region raster=lsat7_2002_30 -p
       d.correlate map=lsat7_2002_30,lsat7_2002_40
       Scatterplot of two LANDSAT TM7 channels

SEE ALSO
        d.text, d.graph, r.coin, r.regression.line, r.stats

AUTHORS
       Michael Shapiro, U.S.Army Construction Engineering Research Laboratory

       Rewritten to GRASS 6 (from csh to sh) by Markus  Neteler;  from  sh  to
       Python by Glynn Clements

SOURCE CODE
       Available at: d.correlate source code (history)

       Accessed: unknown

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       © 2003-2022 GRASS Development Team, GRASS GIS 7.8.7 Reference Manual

GRASS 7.8.7                                                d.correlate(1grass)

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