Description Details Note See Also

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’.

A `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
`x`

and `y`

. See `sim.popn`

for more information
on `Ndist`

and `model2D`

.

The `popn`

class is used only occasionally: it is not central to spatially explicit capture recapture.

`sim.popn`

, `plot.popn`

, `transformations`

secr documentation built on March 18, 2018, 2:11 p.m.

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