r.le.pixel (1grass)

raster, landscape structure analysis, patch index

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

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

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

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)

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

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

Last changed: $Date: 2009-02-04 03:03:33 +0100 (Wed, 04 Feb 2009) $

Full index

� 2003-2014 GRASS Development Team