avail.pts: Create random, available points for RSF/SDM

In jcarlis3/ecoinfo: Assorted Tools for the Management and Analysis of Ecological Information

Create random, available points for RSF/SDM

Description

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.

Usage

avail.pts(used, poly, dist = NULL, mult = 1)

Arguments

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.

Value

A SpatialPointsDataFrame of random, available (i.e., pseudo-absence) points.

Author(s)

Shannon E. Albeke and Jason D. Carlisle, University of Wyoming

jcarlis3/ecoinfo documentation built on Sept. 9, 2023, 1:46 p.m.