dr_kliep: Density-ratio SDM estimation with KLIEP

In S4DM: Small Sample Size Species Distribution Modeling

Density-ratio SDM estimation with KLIEP

Description

dr_kliep is an internal function for density-ratio estimation with KLIEP.

Usage

dr_kliep(
  presence_data = NULL,
  background_data = NULL,
  projection_data = NULL,
  sigma = "auto",
  kernel_num = 100,
  fold = 5,
  verbose = FALSE,
  method,
  object = NULL
)

Arguments

presence_data	dataframe of covariates
background_data	dataframe of covariates
projection_data	dataframe of covariates
sigma	Sigma parameter for KLIEP. Default is the KLIEP default.
kernel_num	kernel_number for KLIEP. Default is the KLIEP default.
fold	Number of folds for KLIEP cross-validation. Default is the KLIEP default.
method	one of either "fit" or "predict"
object	fitted object returned by a dr_... function. Only needed when method = "predict"

S4DM documentation built on May 11, 2026, 9:08 a.m.