simXY: Simulate sightings given a known perpendicular density...
In david-borchers/LT2D: Line transect estimation in two dimensions

Description Usage Arguments Details Value Examples

Simulates sightings from a known population given a density distribution and hazard rate. This function has been replaced by sim.n.

1 2	simXY(N, pi.x, logphi, hr, b, w, ystart, xSampL = 1000, discardNotSeen = TRUE, ...)

`N`	animal population
`pi.x`	function describing the perpendicular distance density distribution
`logphi`	parameters for pi.x (some maybe logged)
`hr`	function describing the hazard rate
`b`	hazard rate parameter vector
`w`	truncation distance
`ystart`	max forward distance at which could possibly detect animal (see details).
`xSampL`	length of x-dimension vector to sample perpendicular distances from.
`discardNotSeen`	boolean; discard individuals not detected. See details
`...`	arguments to be passed into `simnhPP`

if discardNotSeen=FALSE individuals that are not detected are assigned y-dimension distances = -999, otherwise discardNotSeen=TRUE invididuals are removed and not returned

list of $locs x and y coordinates for simulated sightings and $settings simulation settings.

ystart=4;w=1
hr=h2; b=log(c(0.75,1))
pi.x=pi.norm; logphi=c(0.5,log(0.2))
N=50 #true number of animals
#generate some observations
simDat=simXY(N=N,pi.x=pi.x,logphi=logphi,
hr=hr,b=b,w=w,ystart=ystart)
x=simDat$locs$x; y=simDat$locs$y