1. AQuadtree::BarcelonaCensusTracts
    Census tract borders of Barcelona city in Catalonia.
    rda| rds
    SpatialPolygonsDataFrame
  2. AQuadtree::BarcelonaPop
    Radomly created population points for Barcelona city in Catalonia.
    rda| rds
    SpatialPointsDataFrame
  3. AQuadtree::CharlestonCensusTracts
    Census tract borders of Charleston, SC MSA, USA.
    rda| rds
    SpatialPolygons
  4. AQuadtree::CharlestonPop
    Radomly created population points for Charleston, SC MSA, USA.
    rda| rds
    SpatialPointsDataFrame