NAME
r.le.pixel 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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