birthDist: Estimate the temporal distribution of births

In NorskRegnesentral/pupR: Harp and hooded seal pup production estimation

Usage

birthDist(
  harpfname = NA,
  harpLengthStages = c(2.4, 4.42, 11.39),
  harpKappa = 12.4,
  hoodedfname = NA,
  hoodedLengthStages = c(2, 1, 4),
  hoodedKappa = 8.6,
  data = NA,
  survey = NA,
  population = "harp",
  datePhoto = 28,
  Nsim = 10000,
  plotCI = FALSE,
  grDev = FALSE,
  grWidth = 9,
  grHeight = 6
)

Arguments

harpfname	Filename of the harp seal staging data
harpLengthStages	Length of each predefined harp seal stage
harpKappa	A shape parameter defining the duration of each stage
hoodedfname	Filename of the hooded seal staging data
hoodedKappa	A shape parameter defining the duration of each stage
data	Staging data frame containing the colums date and numbers in various stages. See demo data.
survey	Name of the survey to be analyzed
population	Use harp for the harp seal population and hooded for the hooded seal population. Only one population at the time
datePhoto	Date for which the photographic survey was carrie out
Nsim	Number of Monte Carlo simulations used to calculate the 95 \item plotCIPlot with or without 95 \item grDevLoad a graphical device \item grWidthWidth of graphical window \item grHeightHeight of graphical window \item hoodedStagesLength of each predefined hooded seal stage returnList A list containing the estimated mean and std of the birth distribution, the estimated proportions of seals on ice at the time of the photographic survey, and the estimated model fits to the observed staging data. Estimating the temporal distribution of births to correct for pups not born yet or have left the ice. It is important to know that both populations cannot be run at the same time. Each population has to be run separately. birtDist()

NorskRegnesentral/pupR documentation built on Sept. 17, 2020, 5:52 p.m.