#' @title Model module: Domain
#'
#' @description Model module to fit the Domain algorithm.
#'
#' @param .df \strong{Internal parameter, do not use in the workflow function}. \code{.df} is data frame that combines the occurrence data and covariate data. \code{.df} is passed automatically in workflow from the process module(s) to the model module(s) and should not be passed by the user.
#'
#' @return A model object with a valid predict method
#'
#' @seealso \code{\link{dismo::domain}}
#'
#' @author Nick Golding, \email{nick.golding.research@@gmail.com}
#' @section Version: 1.0
#' @section Date submitted: 2017-04-05
#' @section Data type: presence-only
#' @name Domain
#' @family model
Domain <- function (.df) {
zoon:::GetPackage('dismo')
if (!any(.df$type %in% c('presence')))
stop ('presence data must be provided')
# covariates
covs <- as.data.frame(.df[, attr(.df, 'covCols')])
names(covs) <- attr(.df, 'covCols')
# at presence points only
covs_pres <- covs[.df$type == 'presence', , drop = FALSE]
m <- domain(covs_pres)
ZoonModel(model = m,
code = {predict(model, newdata)},
packages = 'dismo')
}
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