GRASS GIS manual: v.adehabitat.mcp

NAME

v.adehabitat.mcp - Uses a GRASS vector points map to compute the Minimum convex polygon home range

KEYWORDS

vector, geometry

SYNOPSIS

v.adehabitat.mcp
v.adehabitat.mcp help
v.adehabitat.mcp input=string output=string percent=string [--overwrite] [--verbose] [--quiet]

Flags:

--overwrite: Allow output files to overwrite existing files
--verbose: Verbose module output
--quiet: Quiet module output

Parameters:

input=string: Name of map containing the relocations to be input
output=string: Name of a vector area map to be output
percent=string: Percentage of the relocations to keep; Default: 95

DESCRIPTION

v.adehabitat.mcp computes the home range of one animal using the Minimum Convex Polygon estimator. This function computes the Minimum Convex Polygon estimation after the removal of '(100 minus percent)' percent of the relocations the farthest away from the centroid of the home range (computed by the arithmetic mean of the coordinates of the relocations for each animal). This function is just a slight modification of the module v.hull of Andrea Aime (aaime@libero.it).

REFERENCES

Mohr, C.O. (1947) Table of equivalent populations of north american small mammals. The American Midland Naturalist, 37, 223-249.

EXAMPLE

Estimation of the 95% home range:

v.adehabitat.mcp input=localisations output=homerange percent=95

AUTHOR

Clement Calenge

Last changed: $Date$

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