{"version":"1.0","type":"rich","title":"Messin - EdX Video Views by Country, AY2013","description":"A stacked bar chart shows total video views for each HarvardX and MITx course in the 2013 academic year, with each bar segmented by country. The visualization is built using the vega-lite-api, which registers vega and vega-lite for rendering. Data is loaded via d3.csv from a GitHub-hosted dataset derived from the MITx-HarvardX Dataverse. The chart uses summed nplay_video values per course, sorts courses by total views, and enables tooltips on hover. The dark-themed configuration customizes axis labels and title styling.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4220be3ac3574120a8a866d0856f49e0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}