lsm_l_cohesion {landscapemetrics} | R Documentation |
COHESION (landscape level)
Description
Patch Cohesion Index (Aggregation metric)
Usage
lsm_l_cohesion(landscape, directions = 8)
Arguments
landscape |
A categorical raster object: SpatRaster; Raster* Layer, Stack, Brick; stars or a list of SpatRasters. |
directions |
The number of directions in which patches should be connected: 4 (rook's case) or 8 (queen's case). |
Details
where is the perimeter in meters,
is the area in square
meters and
is the number of cells.
COHESION is an 'Aggregation metric'.
Because the metric is based on distances or areas please make sure your data
is valid using check_landscape
.
Units
Percent
Ranges
Unknown
Behaviour
Unknown
Value
tibble
References
McGarigal K., SA Cushman, and E Ene. 2023. FRAGSTATS v4: Spatial Pattern Analysis Program for Categorical Maps. Computer software program produced by the authors; available at the following web site: https://www.fragstats.org
Schumaker, N. H. 1996. Using landscape indices to predict habitat connectivity. Ecology, 77(4), 1210-1225.
See Also
lsm_p_perim
,
lsm_p_area
,
lsm_l_cohesion
Examples
landscape <- terra::rast(landscapemetrics::landscape)
lsm_l_cohesion(landscape)