TerraPop Environmental & Demographic Data
TerraPop delivers internationally comparable environment and demographic data at a global scale – this includes raster, area-level and micro-data.
Month: September 2016
Cartogram Maps: Data Visualization with Exaggeration
Cartogram maps distorts reality to convey information. It accomplishes this by resizing and exaggerating any variable using a polygons geometry.
What is a Voronoi Diagram?
In a Voronoi Diagram, when you take a point in any given Thiessen polygon, it indicates that it’s closer to that generating point than to any other.
Lossless Compression vs Lossy Compression
Lossless compression (like JPEG) retains values and lowers file size. However, lossy compression (like LZ77) reduces file size by eliminating redundancy.
Huff Gravity Model: Store Customer Predictions
Huff Gravity Model uses store size and distance along with census tract population to understand the probability that consumers will patron retail stores.