{"version":"1.0","type":"rich","title":"Harvard/MitX Video Views","description":"This stacked bar chart visualizes video-view events across HarvardX and MITx courses on EdX for the 2013 academic year, with each bar segmented by three levels of student engagement, from courseware access to certificate achievement. The visualization uses the Vega-Lite API, with vega-lite’s mark-bar encoding x by course, y by summed video plays, and color by engagement level. Data is loaded asynchronously via d3’s tsv method from a CSV hosted on GitHub, and the rendered SVG is customized using a config object for axis styling.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1f10a1a7bdd64f98a399fc6b11a05bf9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}