EdX Viewership Map, 2013
This map visualizes the geographic distribution of video views in the Harvardx/MITx online courses for the academic year 2013. Circles sized by view count appear at viewer locations across a Mercator-projected world map, with hover tooltips showing latitude, longitude, and country. The visualization uses React for rendering, d3.geoMercator and d3.geoPath for map projection, and d3.scaleSqrt for circle sizing. Data comes from a CSV of course-person records, while the map boundaries use TopoJSON from the World Atlas.
AI-generated descriptionThis is a visualization of the Harvardx/MITx Course-Person Dataset for the academic year 2013. The data shows the number of video views of the online courses, represented by the circles on the map. The data can be found [here] (https://gist.githubusercontent.com/sophburke/e2a5a57fd931cb6174b2ba4494b24996/raw/16d11e7f2ba5920161880e346f988dfea337eee0/hxmitx_pers-courseAY2013_viewer_location-test,csv).
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The world map behind the points is a Mercator type map using the World Atlas TopoJSON. The points are off by a small fraction (down and to the left) however it fits much better on the Mercator projection over the Natural Earth projection. When the user hovers over each point, they can see the latitude and logitude of that deployment.