Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for it...

PostgreSQL is an advanced object-relational database management system that supports an extended subset of...

R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time...

PostGIS is a spatial database extender for PostgreSQL object-relational database. It adds support for geogr...

A Grammar of Data Manipulation.

Simple Features for R.