ct_fit_speedmodel: Fit animal speed model

In ct: Camera Trap Data Management and Multi-Method Ecological Analysis

Fit animal speed model

Description

Fits a statistical model to estimate average movement speed of animals. Used in the REM density estimation.

Usage

ct_fit_speedmodel(
  formula = speed ~ 1,
  data,
  newdata = NULL,
  distance_unit = c("m", "km", "cm"),
  time_unit = c("second", "minute", "hour", "day"),
  ...
)

Arguments

formula	A formula indicating how speed should be modeled (e.g., speed ~ 1).
data	A data frame containing speed observations.
newdata	Optional new data to use for prediction.
distance_unit	Unit of distance. One of "m", "km", "cm".
time_unit	Unit of time. One of "second", "minute", "hour", "day".
...	Additional arguments passed to sbd::sbm().

Value

An object of class sbm, with an additional unit attribute indicating the speed unit.

See Also

ct_fit_rem(), ct_fit_detmodel(), ct_fit_activity()

Examples

data("ctdp")
observations <- ctdp$data$observations %>%
  dplyr::filter(scientificName == "Vulpes vulpes")

ct_fit_speedmodel(speed ~ 1, data = observations)

ct documentation built on Oct. 22, 2026, 1:07 a.m.