dr_rulsif: Density-ratio SDM estimation with RuLSIF

In bmaitner/pbsdm: Small Sample Size Species Distribution Modeling

Density-ratio SDM estimation with RuLSIF

Description

dr_rulsif is an internal function for density-ratio estimation with RuLSIF \insertCiteKanamori2009-pz,Yamada2013-raS4DM.

Usage

dr_rulsif(
  presence_data = NULL,
  background_data = NULL,
  projection_data = NULL,
  sigma = 10^seq(-3, 1, length.out = 9),
  lambda = 10^seq(-3, 1, length.out = 9),
  alpha = 0.1,
  kernel_num = 100,
  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 RuLSIF. Default is the RuLSIF default.
lambda	Lambda parameter for RuLSIF. Default is the RuLSIF default.
alpha	Relative parameter. Defaults to RuLSIF default.
kernel_num	kernel_number for RuLSIF. Default is the RuLSIF default.
method	one of either "fit" or "predict"
object	fitted object returned by a dr_... function. Only needed when method = "predict"

References

\insertAllCited

bmaitner/pbsdm documentation built on Feb. 8, 2025, 2:27 p.m.