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.csr.mw - Complete Spatial Randomness analysis on moving window.
KEYWORDS
raster
SYNOPSIS
r.pi.csr.mw
r.pi.csr.mw --help
r.pi.csr.mw input=name output=name [mask=string] keyval=integer n=integer method=string [size=integer] [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
- --overwrite
- Allow output files to overwrite existing files
- --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=name [required]
- Name for output raster map
- mask=string
- Name of the mask raster file
- keyval=integer [required]
- Category value of the patches
- n=integer [required]
- Number of repetitions to calculate reference value
- method=string [required]
- Method to calculate resulting index
- Options: clark_evans, donnelly
- size=integer
- Size of the output matrix
Complete Spatial Randomness (CSR) analysis based on a moving window.
This function uses either the Clark and Evans (1954) or Donnelly (1978)
aggregation index for testing of clustering of point patterns.
...
An example for the North Carolina sample dataset:
Compute the CSR for the whole landscape of
landclass96 using
class 5 (1000 iteration) using the Clark Evans method:
v.random output=randompoints n=100 zmin=0.0 zmax=0.0
v.to.rast input=randompoints output=randompoints use=val val=1
r.pi.csr.mw input=randompoints keyval=1 n=1000 method=clark_evans output=csr1
The results for the whole landscape is prompted to the console.
Compute the CSR for a defined moving window size of
landclass96 using class 5 (1000 iteration, Clark Evans
method):
r.pi.csr.mw input=randompoints keyval=5 n=1000 method=clark_evans size=7 output=csr1
r.pi.corearea,
r.pi.corr.mw,
r.pi.export,
r.pi.graph,
r.pi.graph.dec,
r.pi.graph.pr,
r.pi.graph.red,
r.pi.grow,
r.pi.import,
r.pi.index,
r.pi.lm,
r.pi.odc,
r.pi.prob.mw,
r.pi.rectangle,
r.pi
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.csr.mw 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.
Main index |
Raster index |
Topics index |
Keywords index |
Graphical index |
Full index
© 2003-2023
GRASS Development Team,
GRASS GIS 7.8.8dev Reference Manual