{"id":7535,"slug":"african-chart-share-pool-split-leave-one-out-2026-robustness","title":"Robustness of Leave one reading out: how much of the rise in African music’s Spotify chart share is the charted pool shrinking, recomputed 45 times (denominator_contribution_pct)","source":"Recomputed from african-chart-share-pool-split-leave-one-out-2026","source_url":"","source_type":"computed","method":"Sensitivity check on \"denominator_contribution_pct\" in the dataset african-chart-share-pool-split-leave-one-out-2026, 45 rows carrying a value. Rows sorted by that column, then the totals recomputed with the largest rows dropped one scenario at a time, and again with named rows excluded. sum_change_pct and mean_change_pct are each scenario against the full set. A finding that moves sharply when a single row leaves is a finding about that row.","unit":"","license":"Afrobeats Wire's compilation and analysis are licensed CC BY 4.0. Rights in the underlying source data remain with the source named above.","confidence":"high","retrieved":"2026-10-17 07:50:20","n":45,"first_party":0,"columns":[{"key":"scenario","label":"Scenario","type":"text"},{"key":"n","label":"Rows","type":"number"},{"key":"sum","label":"Total","type":"number"},{"key":"mean","label":"Mean","type":"number"},{"key":"top_share_pct","label":"Largest row share, %","type":"number"},{"key":"sum_change_pct","label":"Change in total, %","type":"number"},{"key":"mean_change_pct","label":"Change in mean, %","type":"number"}],"rows":[{"scenario":"All rows","n":45,"sum":670.1,"mean":14.8911,"top_share_pct":2.87,"sum_change_pct":0,"mean_change_pct":0},{"scenario":"Excluding the top 1 (2026-09-20)","n":44,"sum":650.9,"mean":14.7932,"top_share_pct":2.83,"sum_change_pct":-2.87,"mean_change_pct":-0.66},{"scenario":"Excluding the top 3 (2026-09-20, 2026-09-27, 2026-09-21)","n":42,"sum":614.9,"mean":14.6405,"top_share_pct":2.85,"sum_change_pct":-8.24,"mean_change_pct":-1.68},{"scenario":"Excluding the top 5 (2026-09-20, 2026-09-27, 2026-09-21, 2026-09-28, 2026-09-15)","n":40,"sum":580,"mean":14.5,"top_share_pct":2.95,"sum_change_pct":-13.45,"mean_change_pct":-2.63}]}