EdX Viewing Patterns by Country, 2013
A world map using a Mercator projection displays circles sized by total video views for HarvardX and MITx online courses in 2013. The visualization uses d3.geoPath for rendering land and graticules, while circles are positioned by longitude and latitude and scaled with d3.scaleSqrt. Hovering reveals country and view counts. A dropdown menu filters between total views and individual courses, although the filtering logic is not connected. Data comes from a CSV dataset of course-person viewer locations.
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.
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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.
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Trying to add a dropdown menu here, by course.