polyarea

dataframe or list with components `x&#39; and `y&#39;, or a
    SpatialPolygons or SpatialPolygonsDataFrame object from package <span class="pkg">sp</span>

logical if TRUE output is converted from square metres to hectares

Area of a single closed polygon (simple x-y coordinate input) or of
multiple polygons, possibly with holes.

 manip 

Functions to estimate the density and size of a spatially distributed animal population sampled with an array of passive detectors, such as traps, or by searching polygons or transects. Models incorporating distance-dependent detection are fitted by maximizing the likelihood. Tools are included for data manipulation and model selection.

polyarea:

Description

Usage

Arguments

Value

Details

See Also

Examples