Beyond the Bar Graph

on YouTube ↗31m

" summary

Builds a d3.js bubble visualization of Rails issues where size = number of comments, opacity = age in days, blue fill marks pull requests and dashed stroke marks open items; data comes from ruby on rails JSON collected with Rails and simple preprocessing. Also uses highcharts.js for timeline plots, finds a huge import spike and a dense cluster around May 2012, and reports the d3 layout as a visually engaging, partly successful prototype that reveals some patterns but needs legends and filtering to be production-ready.

AI-written summary · about

" chapters (9)

1. 0:00Introduction to data viz
2. 1:33Historical context and impact
3. 2:49Web data visualization options
4. 4:19Planning the Rails project
5. 7:21Building the visualization
6. 11:56Adding data attributes
7. 19:49Iterative data analysis
8. 24:01Data visualization philosophy
9. 25:48Q&A and interactive features

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