r.pi.graph.red - GRASS GIS manual

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.

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

DESCRIPTION
NOTES
EXAMPLE
SEE ALSO
AUTHORS

DESCRIPTION

Graph Theory - decreasing distance threshold option.

NOTES

...

EXAMPLE

An example for the North Carolina sample dataset:

g.region -d
...

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: Monday Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55