S4DM (version 0.0.1)

dr_maxnet: Density-ratio SDM estimation with Maxnet

Description

dr_maxnet is an internal function for density-ratio estimation with Maxnet

Usage

dr_maxnet(
  presence_data = NULL,
  background_data = NULL,
  projection_data = NULL,
  formula = NULL,
  regmult = 1,
  regfun = maxnet.default.regularization,
  addsamplestobackground = TRUE,
  clamp = TRUE,
  verbose = FALSE,
  method,
  type = c("link", "exponential", "cloglog", "logistic"),
  object = NULL
)

Arguments

presence_data

dataframe of covariates

background_data

dataframe of covariates

projection_data

dataframe of covariates

formula

Maxnet formula to use. Default (NULL) will use the Maxnet default. This parameter is called "f" in the maxnet function, but is renamed here as using "t" and "f" as object names is frowned upon.

regmult

Maxnet regularization multiplier. Default is 1.

regfun

Maxnet regularization function. Default is the Maxnet default.

addsamplestobackground

If TRUE (the default), any presences that aren't in the background will be added.

clamp

If TRUE (the default), predictions will be limited to ranges seen in the training dataset.

method

one of either "fit" or "predict"

type

Type of response required. Defaults to link, exponential, cloglog, and logistic.

object

fitted object returned by a dr_... function. Only needed when method = "predict"