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r.le.pixel

Langue: en

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Version: 369436 (fedora - 01/12/10)

Section: 1 (Commandes utilisateur)

NAME

r.le.pixel - Contains a set of measures for attributes, diversity, texture, juxtaposition, and edge.

KEYWORDS

raster

SYNOPSIS

r.le.pixel
r.le.pixel help
r.le.pixel [-euz] map=string [sam=string] [reg=string] [att=string[,string,...]] [div=string[,string,...]] [te1=string] [te2=string[,string,...]] [jux=string[,string,...]] [edg=string[,string,...]] [--verbose] [--quiet]

Flags:

-e

Output map 'edge' of edges given a '1' in r.le.para/edge file
-u

Output maps 'units_x' with sampling units for each scale x
-z

Output map 'zscores' with standardized scores
--verbose

Verbose module output
--quiet

Quiet module output

Parameters:

map=string

Raster map to be analyzed
sam=string

Sampling method (choose only 1 method):
       w = whole map u = units m = moving window r = regions

Default: w
reg=string

Name of regions map, only when sam = r; omit otherwise
att=string[,string,...]

b1 = mn. pixel att. b2 = s.d. pixel att.
       b3 = min. pixel att. b4 = max. pixel att.

Options: b1,b2,b3,b4
div=string[,string,...]

d1 = richness d2 = Shannon d3 = dominance d4 = inv. Simpson
Options: d1,d2,d3,d4
te1=string

Texture method (choose only 1 method):
       m1 = 2N-H m2 = 2N-45 m3 = 2N-V m4 = 2N-135      m5 = 4N-HV m6 = 4N-DIAG m7 = 8N

Options: m1,m2,m3,m4,m5,m6,m7
te2=string[,string,...]

Texture measures (required if te1 was specified):
       t1 = contagion t2 = ang. sec. mom. t3 = inv. diff. mom.   t4 = entropy t5 = contrast

Options: t1,t2,t3,t4,t5
jux=string[,string,...]

Juxtaposition measures (weight file in r.le.para needed):
       j1 = mn. juxtaposition j2 = s.d. juxtaposition

Options: j1,j2
edg=string[,string,...]

e1 = sum of edges e2 = sum of edges by type (need edge file: r.le.para)
Options: e1,e2

DESCRIPTION

The r.le.pixel module contains a set of measures for attributes, diversity, texture, juxtaposition, and edge.

NOTES

Full instructions can be found in the r.le manual (see "REFERENCES" section below) and the r.le.setup help page.

REFERENCES

Baker, W.L. and Y. Cai. 1992. The r.le programs for multiscale analysis of landscape structure using the GRASS geographical information system. Landscape Ecology 7(4):291-302.

The r.le manual: Quantitative analysis of landscape structures (GRASS 5; 2001)

SEE ALSO

r.le.patch, r.le.setup, r.le.trace

AUTHOR

William L. Baker Department of Geography and Recreation University of Wyoming Laramie, Wyoming 82071 U.S.A.

Last changed: $Date: 2006-10-06 05:31:41 +0200 (Fri, 06 Oct 2006) $

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