The mean value of core area index at landscape level(vector data)

This function allows you to calculate the mean value of ratio of the core area and the area in a categorical landscape in vector data format

vm_l_cai_mn(landscape, edge_depth)

Arguments

landscape

the input landscape image,

edge_depth

the fixed distance to the edge of the patch

Value

the returned calculated mean value of core area index of the whole landscape 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_cai_mn(vector_landscape, edge_depth = 1)
#> # A tibble: 1 × 5
#>   level     class id    metric value
#>   <chr>     <chr> <chr> <chr>  <dbl>
#> 1 landscape NA    NA    cai_mn  26.3