generate.design.rm: Survey Design of Removal Methods

In dill/wisp: Wildlife Simulation Package (wisp)

Description

Generates a removal method survey design.

Usage

        generate.design.rm(reg, n.occ = 2, effort = rep(1, n.occ))

Arguments

reg	object of class 'region´.
n.occ	number of survey occasions.
effort	vector of catch effort levels to be used on each survey occasion.

Details

The function generates a removal method design object specifying the number of capture occasions and effort levels used on each occasion. The effect of the effort levels in terms of catchability is determined by the capture function, which is specified using ‘setpars.survey.rm’. Conceptually, the function ‘generate.design.rm’ involves only the aspects of the removal method survey that are directly under the control of those doing the survey, while ‘setpars.survey.rm’ involves the aspects of the survey that affect which animals are detected, and involve some random component not directly under the control of those doing the survey. The function generate.design.rm, can later be analysed using specific removal method functions such as point.est.ce for catch-effort method, or point.est.cir for the change-in-ratio method.

Value

generate.design.rm returns an object of class 'design.rm´ which has the following elements:

region	object of class 'region´.
number.occasions	number of survey occasions.
effort	vector of catch efforts of the survey occasions.

See Also

setpars.survey.rm generate.sample.rm

Examples

reg<- generate.region(x.length = 50, y.width = 80)
des<- generate.design.rm(reg, n.occ = 4, effort = c(5,4,3,2))
summary(des)

dill/wisp documentation built on May 15, 2019, 8:31 a.m.