gridUncertaintyRandomManual: Manual function to compute AOO with grid uncertainty randomly

In redlistr: Tools for the IUCN Red List of Ecosystems and Species

Manual function to compute AOO with grid uncertainty randomly

Description

gridUncertaintyRandomManual helps determine the minimum number of area of occupancy (AOO) grid cells occupied by a species or ecosystem. It varies the location of the AOO grid by shifting in randomly in both x- and y- axes, returning summary statistics for the range of AOOs calculated, and the RasterLayer(s) containing the grids with the minimum AOO. Requires manual input for the number of simulations to perform.

Usage

gridUncertaintyRandomManual(
  input.data,
  grid.size,
  n.sim = 10,
  min.percent.rule = FALSE,
  percent = 1
)

Arguments

input.data	Spatial object of an ecosystem or species distribution. Please use a CRS with units measured in metres.
grid.size	A number specifying the width of the desired grid square (in same units as your coordinate reference system)
n.sim	Specifies the number of random grids to be created and tested.
min.percent.rule	Logical. If TRUE, a minimum area threshold must be passed before a grid is counted as an AOO grid.
percent	Numeric. The minimum percent to be applied as a threshold for the min.percent.rule.

Value

List containing the following:

• Data frame of summary statistics for the results

• Data frame showing the distance shifted in x and y directions used to create the AOO grid(s) and their associated AOOs

• List of RasterLayer(s) containing the AOO grid(s) which return the smallest AOO

Author(s)

Nicholas Murray [e-mail], Calvin Lee [e-mail]

See Also

createGrid() getAOOSilent()

Other gridUncertainty functions: gridUncertaintyBase(), gridUncertaintyRandom(), gridUncertaintyRestricted(), gridUncertaintySimulation(), gridUncertainty()

redlistr documentation built on Oct. 3, 2023, 9:07 a.m.