Description
Encapsulate the locations of a set of individual animals.Details
An object of class popn records the locations of a set of individuals, together with ancillary data such as their sex. Often used for a realisation of a spatial point process (e.g. homogeneous Poisson) with known density (intensity). Locations are stored in a data frame with columns `x' and `y'.
A popn object has attributes
ll{
covariates data frame with numeric, factor or character variables to be used as individual covariates
model2D 2-D distribution ("poisson", "cluster", "IHP")
Ndist distribution of number of individuals ("poisson", "fixed")
boundingbox data frame of 4 rows, the vertices of the rectangular area
}
The number of rows in covariates must match the length of
x and y. See sim.popn for more information
on Ndist and model2D.