polyarea

dataframe or list with components `x' and `y', or a
    SpatialPolygons or SpatialPolygonsDataFrame object from package <pkg>sp</pkg>

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: Area of Polygon(s)

Description

Usage

Arguments

Value

Details

See Also

Examples