ptdata.dual: Simulated dual observer point count data

In DistanceDevelopment/mrds: Mark-Recapture Distance Sampling

Simulated dual observer point count data

Description

Simulated dual observer point count data with detection p(0)=0.8; hn sigma=30; w=100 for both observers with dependency y>0, gamma=0.1

Format

The format is 420 obs of 6 variables: distance: numeric distance from center observer: Factor w/ 2 levels "1","2": 1 2 1 2 1 2 1 2 1 2 ... detected: numeric 0/1 person: Factor with 2 levels A,B pair: Factor with 2 levels "AB" BA" $ object : sequential object number

Examples

data(ptdata.dual)
xx <- ddf(mrmodel=~glm(formula=~distance),
          dsmodel = ~cds(key="hn", formula = ~1),
          data = ptdata.dual, method = "io", meta.data = list(point=TRUE))
summary(xx)
plot(xx,main="Simulated point count data")

DistanceDevelopment/mrds documentation built on Feb. 15, 2024, 9:25 a.m.