This is the command d.correlategrass that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
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
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