COVID19 Visualizations in Clojure with Vega

I wanted to better understand COVID-19, so I cloned Johns Hopkins' daily-updated dataset, fired up a Clojure REPL, and started massaging the data into a visualization using the Vega grammar.

This repository is a REPL notebook to demonstrate and extend that exploration.

Usage

A cleaned-up subset of the code I used to produce the visualizations in the article is in the covid19-in-the-repl namespace. If you're new to Clojure or just want to understand the article, I recommend starting there:

1. Clone the Johns Hopkins dataset repo to resources/ within this repo
2. Open applied_science.covid19-clj-viz.covid19_in_the_repl
3. Start a Clojure REPL (based on deps.edn, not Leiningen)
4. Evaluate forms one at a time, with a browser window open next to your editor so you can see the visualizatons as you go

Other namespaces are for exploring and visualizing COVID-19 data in other, similar ways:

• italian-situation replicates Alan Marazzi's article The Italian COVID-19 situation without Panthera, as a demonstration of using orthodox Clojure
• italia visualizes COVID-19 cases in Italy [contributed by David Schmudde]
• india visualizes COVID-19 cases in India [contributed by Noor Afshan Fathima]
• south-america visualizes COVID-19 cases in South America by countries and in Peru by regions [contributed by Yuliana Apaza and Paula Asto]
• explore is a grab-bag of general visual explorations – line & bar charts, choropleths
• china and deutschland are for transforming country-specific data in support of visualizations
• source/* namespaces are for parsing of source data (e.g. Johns Hopkins, the World Bank) into usable structures

Some namespaces depend on cloning other repos into resources. For instance, we put data from Italy's Civil Protection Department into resources/Italia-COVID-19 to support visualizations in the italia and italian-situation namespaces.

License

MIT License

Copyright (c) 2020 David Liepmann, Jack Rusher