r.le.pixel

Contains a set of measures for attributes, diversity, texture, juxtaposition, and edge.

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] [--qq] [--ui]

Example:

r.le.pixel map=string

grass.script.run_command("r.le.pixel", map, sam="w", reg=None, att=None, div=None, te1=None, te2=None, jux=None, edg=None, flags=None, verbose=False, quiet=False, superquiet=False)

Example:

gs.run_command("r.le.pixel", map="string")

Parameters

Command line

map=string [required]
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.
    Allowed values: b1, b2, b3, b4
div=string [,string,...]
    d1 = richness d2 = Shannon d3 = dominance d4 = inv. Simpson
    Allowed values: 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
    Allowed values: 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
    Allowed values: t1, t2, t3, t4, t5
jux=string [,string,...]
    Juxtaposition measures (weight file in r.le.para needed):\     j1 = mn. juxtaposition j2 = s.d. juxtaposition
    Allowed values: j1, j2
edg=string [,string,...]
    e1 = sum of edges e2 = sum of edges by type (need edge file: r.le.para)
    Allowed values: e1, e2
-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
--help
    Print usage summary
--verbose
    Verbose module output
--quiet
    Quiet module output
--qq
    Very quiet module output
--ui
    Force launching GUI dialog

Python (grass.script)

map : str, required
    Raster map to be analyzed
    Used as: input, raster
sam : str, optional
    Sampling method (choose only 1 method):\

    w = whole map u = units m = moving window r = regions
    Default: w
reg : str, optional
    Name of regions map, only when sam = r; omit otherwise
    Used as: input, raster
att : str | list[str], optional
    b1 = mn. pixel att. b2 = s.d. pixel att.\     b3 = min. pixel att. b4 = max. pixel att.
    Allowed values: b1, b2, b3, b4
div : str | list[str], optional
    d1 = richness d2 = Shannon d3 = dominance d4 = inv. Simpson
    Allowed values: d1, d2, d3, d4
te1 : str, optional
    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
    Allowed values: m1, m2, m3, m4, m5, m6, m7
te2 : str | list[str], optional
    Texture measures (required if te1 was specified):\     t1 = contagion t2 = ang. sec. mom. t3 = inv. diff. mom.\     t4 = entropy t5 = contrast
    Allowed values: t1, t2, t3, t4, t5
jux : str | list[str], optional
    Juxtaposition measures (weight file in r.le.para needed):\     j1 = mn. juxtaposition j2 = s.d. juxtaposition
    Allowed values: j1, j2
edg : str | list[str], optional
    e1 = sum of edges e2 = sum of edges by type (need edge file: r.le.para)
    Allowed values: e1, e2
flags : str, optional
    Allowed values: e, u, z
    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: bool, optional
    Verbose module output
    Default: False
quiet: bool, optional
    Quiet module output
    Default: False
superquiet: bool, optional
    Very quiet module output
    Default: False

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)

AUTHOR

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

SOURCE CODE

Available at: r.le.pixel source code (history)
Latest change: Thursday Feb 20 13:02:26 2025 in commit 53de819