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Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

NAME

r.pi.graph.red - Graph Theory - decreasing distance threshold option.

KEYWORDS

raster

SYNOPSIS

r.pi.graph.red
r.pi.graph.red --help
r.pi.graph.red [-a] input=name output=string keyval=integer distance=float step=float neighborhood=string index=string[,string,...] stats=string [--help] [--verbose] [--quiet] [--ui]

Flags:

-a
Set for 8 cell-neighbors. 4 cell-neighbors are default
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

input=name [required]
Name of input raster map
output=string [required]
Name of the output ASCII file
keyval=integer [required]
Key value
distance=float [required]
Distance at which to begin decreasing
step=float [required]
Step to decrease the distance
neighborhood=string [required]
Neighborhood definition
Options: nearest_neighbor, relative_neighbor, gabriel, spanning_tree
index=string[,string,...] [required]
Cluster index
Options: connectance_index, gyration_radius, cohesion_index, percent_patches, percent_area, number_patches, number_links, mean_patch_size, largest_patch_size, largest_patch_diameter, graph_diameter
stats=string [required]
Statistical method to perform on the values
Options: average, median, variance, std_deviat, min, max

Table of contents

DESCRIPTION

Graph Theory - decreasing distance threshold option.

NOTES

...

EXAMPLE

An example for the North Carolina sample dataset:
g.region -d
...

SEE ALSO

r.pi.corearea, r.pi.corr.mw, r.pi.csr.mw, r.pi.export, r.pi.graph, r.pi.graph.dec, r.pi.graph.pr, r.pi.grow, r.pi.import, r.pi.index, r.pi.lm, r.pi.odc, r.pi.prob.mw, r.pi.rectangle, r.pi

AUTHORS

Programming: Elshad Shirinov
Scientific concept: Dr. Martin Wegmann
Department of Remote Sensing
Remote Sensing and Biodiversity Unit
University of Wuerzburg, Germany

Port to GRASS GIS 7: Markus Metz

SOURCE CODE

Available at: r.pi.graph.red source code (history)

Latest change: Mon Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55


Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.

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© 2003-2022 GRASS Development Team, GRASS GIS 7.8.8dev Reference Manual