View source: R/lsm_c_area_cv.R
lsm_c_area_cv | R Documentation |
Coefficient of variation of patch area (Area and edge metric)
lsm_c_area_cv(landscape, directions = 8)
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). |
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.
Hectares
AREA_CV >= 0
Equals AREA_CV = 0 if all patches are identical in size. Increases, without limit, as the variation of patch areas increases.
tibble
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/
lsm_p_area
,
cv
,
lsm_c_area_mn
,
lsm_c_area_sd
,
lsm_l_area_mn
,
lsm_l_area_sd
,
lsm_l_area_cv
lsm_c_area_cv(landscape)
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