Namespace in Imports field not imported from: ‘rgdal’
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘rgdal’
  All declared Imports should be used.
Namespace in Imports field not imported from: 'rgdal'
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘rgdal’
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘rgdal’
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘rgdal’
  All declared Imports should be used.
Namespace in Imports field not imported from: ‘rgdal’
  All declared Imports should be used.