Description Usage Arguments Details Value Author(s) References See Also Examples
Calculates the number of ocupied cells for Area of Occupancy from a set of points (x,y), usually in metres, with orgin 0,0
1 | AOOsimp(thepoints, cellsize)
|
thepoints |
set of points in metres i.e. c(x,y) |
cellsize |
size of cell (length) in metres |
calculates a very simple AOO area from a set of points
integer number of unique cells as an integer
Justin Moat. J.Moat@kew.org
Bachman, S., Moat, J., Hill, A.W., de Torre, J., Scott, B., 2011. Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. Zookeys 126, 117–26. doi:10.3897/zookeys.150.2109
Moat, J., Bachman, S., n.d. GeoCAT Geospatial Conservation Assessment Tool. URL http://geocat.kew.org/
AOORating
for AOO Ratings,
1 2 3 4 | x <- runif (20,0,10)
y <- runif (20,0,10)
df <- data.frame(x,y)
AOOsimp (df,2)
|
[1] 15
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