Altair: Interactive Statistical Visualizations for Python
Jake Vanderplas, Brian Granger, Jeffrey Heer, Dominik Moritz, Kanit Wongsuphasawat, Arvind Satyanarayan, Eitan Lees, Ilia Timofeev, Ben Welsh, Scott Sievert · The Journal of Open Source Software · 2018
Altair is a declarative statistical visualization library for Python.Statistical visualization is a constrained subset of data visualization focused on the creation of visualizations that are helpful in statistical modeling.The constrained model of statistical visualization is usually expressed in terms of a visualization grammar (Wilkinson, 2005) that specifies how input data is transformed and mapped to visual properties (position, color, size, etc.).