Returns a SpatialPolygonsDataFrame for 1st level administrative divisions
convertNaturalEarthAdm1(nameOnly = FALSE, simplify = TRUE)Name of the dataset being created.
Logical specifying whether to only return the name without creating the file.
Logical specifying whether to create "_05", _02" and "_01" versions of the file that are simplified to 5%, 2% and 1%.
A state border shapefile is downloaded and converted to a
SpatialPolygonsDataFrame with additional columns of data. The resulting file
will be created in the spatial data directory which is set with
setSpatialDataDir().
Within the MazamaSpatialUtils package the phrase 'state' refers to administrative divisions beneath the level of the country or nation. This makes sense in the United 'States'. In other countries this level is known as 'province', 'territory' or some other term.
setSpatialDataDir
getVariable