sac {fossil}R Documentation

Calculate Species Area Curves

Description

Calculating a species area curve for a set of georeferenced localities

Usage

sac(lats, spp)

Arguments

lats a table with latitude and longitude respectively for each locality
spp A matrix/data frame of species (rows) by samples/localities (columns)

Details

This will take a set of geographic coordinates along with a table of species by localities and return a matrix with a column of total area and of total species present. The area is calculated by starting with the most central point, and adding those points closest to it, calculating a minimum spanning polygon as each new site is added, until all points are used.

Value

Returns a matrix with columns of total area and total species recorded, respectively.

Author(s)

Matthew Vavrek

References

~put references to the literature/web site here ~

See Also

earth.dist, earth.poly

Examples

##add examples

[Package fossil version 0.2.0 Index]