avail.pts | R Documentation |
This function creates random, available (i,e, pseudo-absence) points that are within a specified polygon. The created points conform to a user-specified proximity rule, i.e., points are not created within a specified minimum distance from each other or the original used points.
avail.pts(used, poly, dist = NULL, mult = 1)
used |
SpatialPointsDataFrame, the used (i.e., presence) points. |
poly |
SpatialPolygonsDataFrame, the area within which random, available points are generated. |
dist |
Scalar, passed to ecoinfo::remove.near. The minimum distance output points can be from the used points, and from each other. Unit is meters for projected coordinate systems. |
mult |
Scalar, the ratio of available points to used points. 1 for a balanced design, 2 for twice as many available points. |
A SpatialPointsDataFrame of random, available (i.e., pseudo-absence) points.
Shannon E. Albeke and Jason D. Carlisle, University of Wyoming
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.