dr_ulsif: Density-ratio SDM estimation with uLSIF

In bmaitner/pbsdm: Small Sample Size Species Distribution Modeling

Density-ratio SDM estimation with uLSIF

Description

dr_ulsif is an internal function for density-ratio estimation with uLSIF \insertCiteKanamori2009-pzS4DM.

Usage

dr_ulsif(
  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),
  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 uLSIF. Default is the uLSIF default.
lambda	Lambda parameter for uLSIF. Default is the uLSIF default.
kernel_num	kernel_number for uLSIF. Default is the uLSIF 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.