boyce: Boyce's continuous index

In peterbat1/fitMaxnet: Fit MaxEnt Niche Models Using maxnet

Boyce's continuous index

Description

Boyce's continuous index

Usage

boyce(fit, obs, nclass = 0, window.w = "default", res = 100, PEplot = FALSE)

Arguments

fit	A numeric vector or RasterLayer or SpatRaster containing the predicted suitability values
obs	A numeric vector containing the predicted suitability values or xy-coordinates (if fit is a Raster-Layer) of the validation points (presence records)
nclass	Numeric. Number of classes or vector with classes threshold. If nclass=0, Boyce index is calculated with a moving window (see next parameters)
window.w	Numeric. Width of the moving window (by default 1/10 of the suitability range)
res	Numeric. Resolution of the moving window (by default 100 focals)
PEplot	Logical. If TRUE, plot the predicted to expected ratio along the suitability class

Details

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Hirzel et al. 2006. Evaluating the ability of habitat suitability models to predict species presences. Ecological Modelling 199:142-152.

Value

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peterbat1/fitMaxnet documentation built on Sept. 17, 2024, 10:50 p.m.