strata_coordinates: Grab coordinates for strata
In MarianaLag/Mlag: Tools Related to the Spatial Analysis of Genetic Marker Data

Description Usage Arguments Value Author(s)

This function takes a data.frame, and a stratum and makes a data frame consisting of Stratum, Latitude, and Longitude for each stratum

strata_coordinates(
  x,
  stratum = "Population",
  longitude = "Longitude",
  latitude = "Latitude",
  as.SpatialPoints = FALSE,
  sort.output = FALSE,
  single.stratum = TRUE
)

`x`	A `data.frame` object.
`stratum`	The name of the stratum to partition on (default="Population").
`longitude`	The column name of the longitude
`latitude`	The column name of the latitude
`as.SpatialPoints`	A flag indicating what kind of coordinates to return should be turned into a SpatialPoints object (TRUE) or as a `data.frame` (FALSE, the default)
`sort.output`	A flag indicating if the results should be sorted alphabetically (default=FALSE)
`single.stratum`	A flag to indicate that you only want one entry per stratum (for collapsing points within strata, Default=TRUE).