Parallel Coordinates for World Age Groups.

The map you're looking at displays the world's age distributions in a multivariate manner. I was inspired by the somehwat-common population prymaids from various sources online. Unfortunately while the prymaid allows you a finer grained analysis, the form doesn't lend itself to integrating more than one country at a time. The parallel coordinates and map combination neatly follows Scheiderman's mantra.

  • P.C. enables you (the user) an overview of all the data. Over 140 countries are depicted, instead of the P.P.'s 1. Immediately you can see the anamalous spikes from African countries high child population.
  • There are three primary points of interaction; brushing P.C. axes, the dropdown attribute selection, and the map hovering. Each of them aid in assisting the user to get the data they need by zooming and filtering the data.
  • The map tooltip interaction allows precise information, thus serving as a proxy for details on demand.

Overall, the world's population distribution has very clear trends: developed nations have a much more balanced distribution, if not skewed toward older groups. Undeveloped nations are bottom heavy, with a lot of children. The data was taken from the World Bank's Health Nutrition and Population Statistics estimates 2015 survey data. Some countries are incomplete, and will be greyed out. All of the data has been normalized, so the values you see at the bottom are the portions of the country whose population is made up of that age group.

In case GitHub Pages incorrectly displays the map, click below!

Changes: Mouseover now highlights the parallel coordinate plot! Some minor formatting tweaks otherwise.

Copyright © Ryan Larson 2017