Countries of occurrence.
Extracts the names or ISO codes of countries of occurrence of a species based on either records or predicted distribution.
Either a matrix of longitude and latitude (two columns) of each occurrence record or a presence/absence map as a RasterLayer object.
Outputs either country names (FALSE) or ISO codes (TRUE).
Country boundaries and designations are based on data(data.worldborders) from package maptools.
A vector with country names or codes.
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