Practice with purpose
Real datasets. Meaningful questions. Build a portfolio that turns evidence into a clear story, using the tools you know best.
October 2026 edition · 24 October–2 November
Ten daily briefs across health, development and business intelligence. Progress from focused charts to decision-ready dashboards.
R · Python · Power BI · Looker Studio · R Shiny
Each edition keeps its own instructions and links. More challenge editions will be added here.
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