R Graphical Manual

Last data update: 2014.03.03

R: Compute the midpoint of species' geographic ranges

lets.midpoint

R Documentation

Compute the midpoint of species' geographic ranges

Calculate species' distributional midpoint from a presence-absence matrix.

lets.midpoint(pam, planar = FALSE)

`pam`	A presence-absence `matrix` (sites in the rows and species in the columns, with the first two columns containing the longitudinal and latitudinal coordinates, respectively), or an object of class `PresenceAbsence`.
`planar`	Logical, if `FALSE` the coordinates are in Longitude/Latitude. If `TRUE` the coordinates are planar.

A data.frame containing the species' names and geographic coordinates (longitude [x], latitude [y]) of species' midpoints.

Fabricio Villalobos & Bruno Vilela

## Not run: 
data(PAM)
mid <- lets.midpoint(PAM)

## End(Not run)