[0.3.0] Remove sp, rgdal and maptools from examples and suggestions. [0.2.2] Fix geometry replacement in cartogram_ncont [0.2.0] Migrated all functions to sf, fixed problems with multipolygons. cartogram functions won't accept features with longitude/latitude coordinates anymore. [0.1.1] Speedup sf code [0.1.0] Non-Overlapping Circles Cartogram (Dorling) [0.0.3] sf support added [0.0.2] Non-contiguous Area Cartogram [0.0.2] Prepare data with missing or extreme values before cartogram calculation for faster convergence [0.0.1] Initial Release