calc.lpars: Calculates scaling parameters required by 'sim.n'
In david-borchers/LT2D: Line transect estimation in two dimensions

Description Usage Arguments Details Value Examples

Calculates scaling parameters required by sim.n in order to generate sample of given size.

1 2	calc.lpars(n, ymin, ymax, W, hfun, b, pi.x, logphi, nx = 100, ny = 100, inflate = 1.05)

`n`	expected sample size reqired from NHPP
`ymin`	smallest forward distance
`ymax`	largest forward distance
`W`	perpendicular truncation distance
`hfun`	detection hazard function
`b`	vector of detection hazard function parameters
`pi.x`	perpendicular distance distribution function
`logphi`	vector with log of pi.x parameters
`nx`	number of intervals on x-axis at which to calculate intensity
`ny`	number of intervals on y-axis at which to calculate intensity
`inflate:`	multiplier by which to increase max intensity in region; this is just a safeguard against the max at some point not calculated being greater than the points at which it was calculated. (The sample generator in `rpoispp` uses rejection sampling so needs the global max.)

Calls poisint on grid of (x,y) points, calculates total intensity in area and then calculates scaling needed to make this equal to n, and the maximum intensity in the region.

Output from this function can be passed as the lscale argument to sim.n.

Object of class "ppscale", being alist with two parameters: $lscale is the multiplier needed to make the total intensity equal to n, while $lmax is maximum lintensity in the region.

## Not run: 
n=100;ymin=0.01;ymax=5;W=2
b=log(c(0.75,1));logphi=c(0.5,log(0.3))
intscale=calc.lpars(n,ymin,ymax,W,h2,b,pi.norm,logphi)
intscale

## End(Not run)