secr (version 3.0.1)

detector: Detector Type

Description

Extract or replace the detector type.

Usage

detector(object, …)
detector(object) <- value

Arguments

object

object with `detector' attribute e.g. traps

value

character string for detector type

…

other arguments (not used)

Value

character string for detector type

Details

Valid detector types are `single', `multi', `proximity', `count', `signal', `polygon', `transect', `polygonX', and `transectX'. The detector type is stored as an attribute of a traps object. Detector types are mostly described by Efford et al. (2009a,b; see also ../doc/secr-overview.pdf). Polygon and transect detector types are for area and linear searches as described in http://www.otago.ac.nz/density/pdfs/secr-polygondetectors.pdf and Efford (2011). The `signal' detector type is used for acoustic data as described in http://www.otago.ac.nz/density/pdfs/secr-sound.pdf.

References

Efford, M. G. (2011) Estimation of population density by spatially explicit capture--recapture with area searches. Ecology 92, 2202--2207.

Efford, M. G., Borchers D. L. and Byrom, A. E. (2009a) Density estimation by spatially explicit capture-recapture: likelihood-based methods. In: D. L. Thomson, E. G. Cooch and M. J. Conroy (eds) Modeling Demographic Processes in Marked Populations. Springer, New York. Pp. 255--269.

Efford, M. G., Dawson, D. K. and Borchers, D. L. (2009b) Population density estimated from locations of individuals on a passive detector array. Ecology 90, 2676--2682.

See Also

traps, RShowDoc

Examples

## Default detector type is "multi"
temptrap <- make.grid(nx = 6, ny = 8)
detector(temptrap) <- "proximity"
summary(temptrap)