Description Usage Arguments Details Value See Also Examples
This function uses the data stored in the 'pars.design.dp´ object to create a new design object
1 | generate.design.dp(pars.des, seed = NULL)
|
pars.des |
An parameter object returned by the function |
seed |
the number passed to set.seed() to initialise random number generator |
A survey design of the double platform method is generated as design object. generate.design.dp
works with the object 'pars.design.dp´ that was generated by the function setpars.design.dp
. setpars.design.dp
has to be run prior.
generate.design.dp
returns an object of class 'design.dp´ which has the following elements:
region |
object of class 'region´ |
n.transects |
number of transect paths |
effective.n.transects |
the effective number of transect paths |
n.units |
number of survey units |
pos.x |
vector of x-positions of the survey units |
start.y |
vector of starting y-positions of the survey units |
end.y |
vector of ending y-positions of the survey units |
visual.range |
visibility of both observers |
percentage.on.effort |
percentage of the transect lines that is searched |
parents |
Details of WiSP objects passed to function |
created |
Creation date and time |
seed |
Equal to the argument 'seed' passed to the function |
setpars.design.dp
, plot.design.dp
1 2 3 4 5 6 7 8 9 10 11 12 13 | dp.reg <- generate.region(x.length = 100, y.width = 50)
dp.dens <- generate.density(dp.reg)
#heterogeneous population
dp.poppars<-setpars.population(density.pop = dp.dens, number.groups = 1000, size.method = "poisson",
size.min = 1, size.max = 30, size.mean = 10, exposure.method = "beta",
exposure.min = 0, exposure.max = 1, exposure.mean = 0.4,
exposure.shape = 0.5,type.values=c("Male","Female"), type.prob=c(0.48,0.52))
dp.pop<-generate.population(dp.poppars)
dp.despars<-setpars.design.dp(dp.reg, n.transects=10, n.units=10, visual.range=2, percent.on.effort=1)
dp.des<-generate.design.dp(dp.despars, seed=3)
summary(dp.des)
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.