ptdata.distance: Single observer point count data example from Distance

In mrds: Mark-Recapture Distance Sampling

Single observer point count data example from Distance

Description

Single observer point count data example from Distance

Format

The format is 144 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 object: sequential object number Sample.Label: point label Region.Label: single region label

Examples

data(ptdata.distance)
xx <- ddf(dsmodel = ~cds(key="hn", formula = ~1), data = ptdata.distance,
          method = "ds", meta.data = list(point=TRUE))
summary(xx)
plot(xx,main="Distance point count data")
ddf.gof(xx)
Regions <- data.frame(Region.Label=1,Area=1)
Samples <- data.frame(Sample.Label=1:30,
                      Region.Label=rep(1,30),
                      Effort=rep(1,30))
print(dht(xx,sample.table=Samples,region.table=Regions))

mrds documentation built on May 29, 2024, 3:56 a.m.