detFuns {unmarked}R Documentation

Detection functions used by distsamp

Description

These functions represent the currently available detection functions used for modeling line and point transect data with distsamp

Usage

gxhn(x, sigma)
gxexp(x, rate)
gxhaz(x, shape, scale)
grhn(r, sigma)
grexp(r, rate)
grhaz(r, shape, scale)

Arguments

x Perpendicular distance
r Radial distance
sigma Shape parameter of half-normal detection function
rate Shape parameter of negative-exponential detection function
shape Shape parameter of hazard-rate detection function
scale Scale parameter of hazard-rate detection function

See Also

distsamp for example of using these for plotting detection function


[Package unmarked version 0.8-1 Index]