man r.le.pixel () -

NAME

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,...]]

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

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

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

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.

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

SEE ALSO

r.le.dist, r.le.null, r.le.patch, r.le.rename, 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: 2003/05/06 13:54:02 $

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