the number of disjunct core area in the whole landscape(vector data)

This function allows you to calculate the number of disjunct core areas in a categorical landscape in vector data format

vm_l_ndca(landscape, edge_depth)

Arguments

landscape

the input landscape image,

edge_depth

the fixed distance to the edge of the patch

Value

the returned calculated number of core area is in column "value", and this function returns also some important information such as level and metric name, Moreover, class number and the "id" column, although both are "NA" here in the landscape level

Examples

vm_l_ndca(vector_landscape, edge_depth = 1)
#> # A tibble: 1 × 5
#>   level     class id    metric value
#>   <chr>     <chr> <chr> <chr>  <dbl>
#> 1 landscape NA    NA    ndca      17