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Convert a LAGOSNE flat file into a spatial object

Source: R/coordinates.R
coordinatize.Rd

This function turns a data.frame into a spatial object using a reasonable default projection.

Usage

coordinatize(dt, latname = "nhd_lat", longname = "nhd_long", crs = 4326)

Arguments

dt

data.frame

latname

character name of latitude column; default is "nhd_lat"

longname

character name of longitude column; default is "nhd_long"

crs

numeric epsg code; default is 4326 WGS84-lat-long

Examples

if (FALSE) {
dt <- lagosne_load("1.087.3")
res <- coordinatize(dt$locus)

library(maps)
map("state", xlim = c(-97.90363, -66.99892), ylim = c(34.61761, 49.41941))
plot(res$geometry, add = TRUE, pch = 19, cex = 0.05)
}