A package that provides simple features access for R. Package sf:

• represents simple features as records in a data.frame or tibble with a geometry list-column
• represents natively in R all 17 simple feature types for all dimensions (XY, XYZ, XYM, XYZM)
• interfaces to GEOS to support geometrical operations including the DE9-IM
• interfaces to GDAL, supporting all driver options, Date and POSIXct and list-columns
• interfaces to PRØJ for coordinate reference system conversions and transformations
• uses well-known-binary serialisations written in C++/Rcpp for fast I/O with GDAL and GEOS
• reads from and writes to spatial databases such as PostGIS using DBI
• is extended by pkg lwgeom for further liblwgeom/PostGIS functions, including some spherical geometry functions