average.line: Average detection function line for plotting

In mrds: Mark-Recapture Distance Sampling

Average detection function line for plotting

Description

For models with covariates the detection probability for each observation can vary. This function computes an average value for a set of distances to plot an average line to graphically represent the fitted model in plots that compare histograms and the scatter of individual estimated detection probabilities. Averages are calculated over the observed covariate combinations.

Usage

average.line(finebr, obs, model)

Arguments

finebr	set of fine breaks in distance over which detection function values are averaged and plotted
obs	value of observer for averaging (1-2 individual observers; 3 duplicates; 4 pooled observation team)
model	ddf model object

Value

list with 2 elements

xgrid	vector of gridded distance values
values	vector of average detection function values at the xgrid values

Note

Internal function called from plot functions for ddf objects

Author(s)

Jeff Laake

mrds documentation built on July 9, 2023, 6:06 p.m.