redlistr (version 2.1.0)

top_pct: Identify positions of the bottom 1% of ecosystem area in AOO grid

Description

top_pct returns the vector positions of the largest elements collectively comprising a given percentage more of the vector sum. This function helps perform the bottom_1pct_rule when selecting the AOO grid by identifying grid positions to keep.

Usage

top_pct(v, pct = 99)

Value

a numeric vector indicating the indices of the elements to keep.

Arguments

v

A numeric vector.

pct

percent of area to drop

Author

Aniko B. Toth

References

IUCN (2024). Guidelines for the application of IUCN Red List of Ecosystems Categories and Criteria, Version 2.0. Keith, D.A., Ferrer-Paris, J.R., Ghoraba, S.M.M., Henriksen, S., Monyeki, M., Murray, N.J., Nicholson, E., Rowland, J., Skowno, A., Slingsby, J.A., Storeng, A.B., Valderrábano, M. & Zager, I. (Eds.). Gland, Switzerland: IUCN. ix + 94pp. Available at the following web site: https://iucnrle.org/

See Also

Other AOO functions: createGrid(), getAOO(), jplot(), makeAOOGrid()