Since I started developing AequilibraE, one of the greatest constraints I was subject to (if not the single greatest) was the limited number of installed python libraries distributed with QGIS for Windows, which really limited the features I could add to the package and how I had to write certain features, resulting in (often) convoluted […]
By now, everybody has read (multiple times) Geoff Boeing’s excellent post on the importance of using spatial indices when performing spatial operations and the impact that having grided polygons can have in overlay operations. It is not ground-breaking, but that the number one reference I give to people that are starting in geoprocessing outside QGIS. There […]
An important part of my day job is to develop new transportation models, and that includes a lot of discrete choice model estimation, and in the last 18 months that has included anywhere from simple departure time choice models, to more sophisticated mode choice models, where we experimented with Nested, Cross-Nested and Mixed-Logit. We have […]