overlap: Spatial overlap and turnover-complement

In anttonalberdi/ENMhill: Analysis of Environmental Niche Modelling Projections Based on Hill Numbers

Description

Compute Hill numbers-based spatial overlap and turnover-complement metrics on multiple Environmental Niche Model projection rasters.

Usage

overlap(rasters, qvalue, metric, thresholds)

Arguments

qvalue	A positive number, usually between 0 and 5, but most commonly 0, 1 or 2. It can be an integer or contain decimals.
metric	A vector indicating the similarity metrics to be computed. Default: metric=c("C","U","V","S")
raster	A RasterStack (multiple projections) object containing ENM projections with suitability scores.
threshold	Suitability value(s) below which all values are converted into zeros. The argument should contain a vector of threshold values sorted as the RasterStack model projections.

Details

Spatial overlap and turnover-complement computation based on Hill numbers

Value

Alpha, gamma and beta values and similarity metrics.

Author(s)

Antton Alberdi, [e-mail]

References

Alberdi, A., Novella-Fernandez R., Aizpurua, O., Razgour, O. (2019). Measuring breadth and overlap of spatial projections of environmental niche models based on Hill numbers.

Alberdi, A., Gilbert, M.T.P. (2019). A guide to the application of Hill numbers to DNA-based diversity analyses. Molecular Ecology Resources, 19, 804-817.

See Also

breadth

Examples

data()
overlap(rasters,qvalue=1)
overlap(rasters,qvalue=1,metric="C",thresholds=thresholds)

anttonalberdi/ENMhill documentation built on Nov. 2, 2019, 1:57 p.m.