Range Index(vector data) — vm_c_range

Calculate Range Index

vm_c_range_mn(landscape, class_col)

Arguments

landscape: the input landscape image,
class_col: the name of the class column of the input landscape

Value

the function returns tibble with the calculated values in column "value", this function returns also some important information such as level, class, patch id and metric name.

Details

ratio between diameter of equal-area circle and diameter of smallest circumscribing circle

References

Angel, S., Parent, J., & Civco, D. L. (2010). Ten compactness properties of circles: Measuring shape in geography: Ten compactness properties of circles. The Canadian Geographer / Le Géographe Canadien, 54(4), 441–461. https://doi.org/10.1111/j.1541-0064.2009.00304.x

Examples

vm_c_range_mn(vector_landscape, "class")
#> # A tibble: 3 × 5
#>   level class id    metric   value
#>   <chr> <chr> <chr> <chr>    <dbl>
#> 1 class 1     NA    range_mn 0.340
#> 2 class 2     NA    range_mn 0.521
#> 3 class 3     NA    range_mn 0.562