Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.
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)
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.
If three or four map layers are specified, the correlation
among each combination of two data layers is displayed.
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
d.text,
d.graph,
r.coin,
r.regression.line,
r.stats
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)
Latest change: Thursday Feb 03 11:10:06 2022 in commit: 547ff44e6aecfb4c9cbf6a4717fc14e521bec0be
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© 2003-2024
GRASS Development Team,
GRASS GIS 8.3.3dev Reference Manual