Learning to Data

With latitude and longitude coordinates, there are a number of ways to map geographic data using D3.js and Leaflet.

A combination of a bivariate area chart, animation, and a population pyramid, with a sprinkling of detail and annotation.

Also known as ridgeline plots, the method overlaps time series for a 3-D-ish view of the data. While perhaps not the most visually efficient, the allure is undeniable.

Compare distributions side-by-side with a pyramid chart. Observe the change over the years by animating it.

Show individual data points by splitting bars into smaller cells.