Encapsulate the locations of a set of individual animals.
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’.
popn object has attributes
|covariates||data frame with numeric, factor or character variables to be used as individual covariates|
|model2D||2-D distribution ("poisson", "cluster", "IHP", "linear" etc.)|
|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
sim.popn for more information
popn class is used only occasionally: it is not central to spatially explicit capture recapture.