Description Usage Arguments Value Author(s)
This function generates points of natural origin around existent points by sampling their distance from the original propagule from a user-defined dispersal kernel (as set in function SDS(), the output of which is to be entered in this function as argument 'Delta'.
1 | NPG(PresLoc, N, Deltas, year)
|
PresLoc |
data frame with coordinates of sighting locations. Column 2 must be 'y' (latitude on a projected coordinate system with meters as distance unit of measure) and column 3 must be 'x' (longitude on a projected coordinate system with meters as distance unit of measure). |
N |
total number of points to generate. |
Deltas |
y and x shifts as generated from function SDS(). This function samples distance and angle of new points form existing ones from this argument. |
year |
the year lable to attach to the generated points |
data frame of combined source ('PresLoc' argument) and new locations.
Luca Butikofer
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