This function allows you to calculate the Patch richness density in a categorical landscape in vector data format, Patch richness density is diversity index

vm_l_prd(landscape, class_col)

Arguments

landscape

the input landscape image,

class_col

the name of the class column of the input landscape

Value

the returned calculated index 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_prd(vector_landscape, "class")
#> # A tibble: 1 × 5
#>   level     class id    metric value
#>   <chr>     <chr> <chr> <chr>  <dbl>
#> 1 landscape NA    NA    prd    3333.