lsm_c_area_cv: AREA_CV (class level)

In landscapemetrics: Landscape Metrics for Categorical Map Patterns

AREA_CV (class level)

Description

Coefficient of variation of patch area (Area and edge metric)

Usage

lsm_c_area_cv(landscape, directions = 8)

Arguments

landscape	Raster* Layer, Stack, Brick, SpatRaster (terra), stars, or a list of rasterLayers
directions	The number of directions in which patches should be connected: 4 (rook's case) or 8 (queen's case).

Details

AREA_{CV} = cv(AREA[patch_{ij}])

where AREA[patch_{ij}] is the area of each patch in hectares.

AREA_CV is an 'Area and Edge metric'. The metric summarises each class as the Coefficient of variation of all patch areas belonging to class i. The metric describes the differences among patches of the same class i in the landscape and is easily comparable because it is scaled to the mean.

Units

Hectares

Range

AREA_CV >= 0

Behaviour

Equals AREA_CV = 0 if all patches are identical in size. Increases, without limit, as the variation of patch areas increases.

Value

tibble

References

McGarigal, K., SA Cushman, and E Ene. 2012. FRAGSTATS v4: Spatial Pattern Analysis Program for Categorical and Continuous Maps. Computer software program produced by the authors at the University of Massachusetts, Amherst. Available at the following web site: https://www.umass.edu/landeco/

See Also

lsm_p_area, cv,
lsm_c_area_mn, lsm_c_area_sd,
lsm_l_area_mn, lsm_l_area_sd, lsm_l_area_cv

Examples

lsm_c_area_cv(landscape)

landscapemetrics documentation built on July 9, 2023, 7:03 p.m.