Mean of patch area (Area and edge metric)
lsm_c_area_mn(landscape, directions)# S3 method for RasterLayer
lsm_c_area_mn(landscape, directions = 8)
# S3 method for RasterStack
lsm_c_area_mn(landscape, directions = 8)
# S3 method for RasterBrick
lsm_c_area_mn(landscape, directions = 8)
# S3 method for stars
lsm_c_area_mn(landscape, directions = 8)
# S3 method for list
lsm_c_area_mn(landscape, directions = 8)
Raster* Layer, Stack, Brick or a list of rasterLayers
The number of directions in which patches should be connected: 4 (rook's case) or 8 (queen's case).
tibble
$$AREA_{MN} = mean(AREA[patch_{ij}])$$ where \(AREA[patch_{ij}]\) is the area of each patch in hectares
AREA_MN is an 'Area and Edge metric'. The metric summarises each class
as the mean of all patch areas belonging to class i. The metric is a simple way
to describe the composition of the landscape. Especially together with the total
class area (lsm_c_ca
), it can also give an an idea of patch structure
(e.g. many small patches vs. few larges patches).
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: http://www.umass.edu/landeco/research/fragstats/fragstats.html
lsm_p_area
,
mean
,
lsm_c_area_cv
,
lsm_c_area_sd
,
lsm_l_area_mn
,
lsm_l_area_sd
,
lsm_l_area_cv
# NOT RUN {
lsm_c_area_mn(landscape)
# }
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