Packages suggested but not available for checking: 'rgdal', 'rgeos'
Packages suggested but not available for checking: 'rgdal', 'rgeos'
Packages suggested but not available for checking: 'rgdal', 'rgeos'
Namespace in Imports field not imported from: ‘sp’
  All declared Imports should be used.
Packages suggested but not available for checking: 'rgdal', 'rgeos'
Namespace in Imports field not imported from: ‘sp’
  All declared Imports should be used.
Packages suggested but not available for checking: 'rgdal', 'rgeos'
Packages suggested but not available for checking: 'rgdal', 'rgeos'
Namespace in Imports field not imported from: ‘sp’
  All declared Imports should be used.