opp_bbmm: Calculate Brownian Bridge Movement Model (bbmm) kernels

In popovs/OPPtools: This package contains tools and templates to analyze seabird tracking data

Calculate Brownian Bridge Movement Model (bbmm) kernels

Description

This function is a wrapper of adehabitatHR::kernelbb and calculates Brownian Bridge Movement Model (bbmm) kernels for a given set of tracks.

Usage

opp_bbmm(
  data,
  sig2 = 20,
  bridgeSmooth = 1,
  res,
  extendGrid = 10,
  useGappy = TRUE,
  interpolated = TRUE,
  showLiker = FALSE,
  ...
)

Arguments

data	Trips, as output by either opp_get_trips or ctcrw_interpolation.
sig2	Numeric. sig2 parameter in the bbmm model, typically expressed as GPS error in meters.
bridgeSmooth	Numeric. Parameter to over-smooth bbmm kernels.
res	Numeric. Resolution in km of base kernel grid.
extendGrid	Numeric. Distance (km) to expand grid beyond the bounding box of tracking data. Default 10km.
useGappy	Logical (T/F). Should "Gappy" trips as identified by opp_get_trips be included in bbmm? Default TRUE. If FALSE, only trips identified as "Complete" are used. Note this parameter is ignore if using interpolated data, where by definition the gaps have been interpolated over.
interpolated	Logical (T/F). If an output from ctcrw_interpolation is provided, should the interpolated data be used? Default is TRUE.
showLiker	Logical (T/F). Show plot outputs from adehabitatHR::liker (used to calculate bbmm sig1 parameter)? Default FALSE.

popovs/OPPtools documentation built on July 8, 2023, 2:29 a.m.