Simulate archival tags — sim.atags • momo

sim.atags allows to simulate archival tags.

Usage

sim.atags(
  grid,
  par = NULL,
  env = NULL,
  n = 30,
  effort = NULL,
  trange = NULL,
  dt = NULL,
  trange.rel = NULL,
  xrange.rel = NULL,
  yrange.rel = NULL,
  trange.rec = NULL,
  by = 0.01,
  knots.tax = NULL,
  knots.dif = NULL,
  funcs = NULL,
  verbose = TRUE
)

Arguments

grid: a grid.
par: optional; allows to specify all or some of the parameters used for simulation. Default: NULL.
env: optional; allows to specify environmental fields that are used for simulation. Default: NULL.
n: number of tags. Default: 30.
effort: optional; allows to specify effort fields that are used for simulation. Default: NULL.
trange: range model time. Default: NULL.
dt: optional; resolution of model time steps. If NULL (default), the default time step of setup.momo.data is used (0.1).
trange.rel: optional; allows to specify a specific part of the time series in which tags are released. Default: NULL.
xrange.rel: optional; allows to specify a specific part of the x range of the spatial domain in which tags are released. Default: c(0.4,0.6).
yrange.rel: optional; allows to specify a specific part of the y range of the spatial domain in which tags are released. Default: c(0.4,0.6).
trange.rec: optional; allows to specify a specific part of the time series in which tags are recaptured. Default: NULL.
by: time step of the tag simulation model. Default: 0.01.
knots.tax: optional; allows to specify knots for the taxis component. Default: NULL.
knots.dif: optional; allows to specify knots for the diffusion component. Default: NULL.
funcs: optional; allows to specify movement functions. If NULL (default), the function get.sim.funcs is used.
verbose: If TRUE, print information to console. Default: TRUE.

Value

A data frame with simulate archival tags.

Examples

data(skjepo)

atags <- sim.atags(skjepo$grid)
#> Error in apply(res$knots.tax, 2, duplicated): dim(X) must have a positive length