SDMPlay (version 2.0)

SDMdata.quality: Evaluate dataset quality

Description

Evaluate the percentage of occurrences that fall on pixels assigned by NA values in the environmental RasterStack. It may provide interesting information to interpret model robustness.

Usage

SDMdata.quality(data)

Arguments

data

SDMtab object or dataframe that contains id, longitude, latitude and values of environmental descriptors at corresponding locations

Value

prop Dataframe that provides the proportion of NA values on which the presence data fall, for each environmental predictor

See Also

SDMeval

Examples

# NOT RUN {
#Generate a SDMtab
data('ctenocidaris.nutrix')
occ <- ctenocidaris.nutrix
# select longitude and latitude coordinates among all the information
occ <- ctenocidaris.nutrix[,c('decimal.Longitude','decimal.Latitude')]

library(raster)
data("predictors2005_2012")
envi <- predictors2005_2012
envi

#Create the SDMtab matrix
SDMtable_ctenocidaris <- SDMPlay:::SDMtab(xydata=occ,
                                         predictors=predictors2005_2012,
                                         unique.data=FALSE,
                                         same=TRUE)

# Evaluate the matrix quality
SDMPlay:::SDMdata.quality(data=SDMtable_ctenocidaris)
# }