detFuns {unmarked} | R Documentation |
These functions represent the currently available detection
functions used for modeling line and point transect data with
distsamp
gxhn(x, sigma) gxexp(x, rate) gxhaz(x, shape, scale) grhn(r, sigma) grexp(r, rate) grhaz(r, shape, scale)
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 |
distsamp
for example of using these for plotting
detection function