{"id":3603,"slug":"african-artist-single-market-share-series-aug-sep-2026-robustness","title":"Robustness of Share of African artists appearing on exactly one Spotify chart, 14 collection dates, 13 August to 4 September 2026 (single_market_artist_pct)","source":"Recomputed from african-artist-single-market-share-series-aug-sep-2026","source_url":"","source_type":"computed","method":"Sensitivity check on \"single_market_artist_pct\" in the dataset african-artist-single-market-share-series-aug-sep-2026, 14 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":"medium","retrieved":"2026-09-05 07:49:30","n":14,"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":14,"sum":1228,"mean":87.7143,"top_share_pct":7.25,"sum_change_pct":0,"mean_change_pct":0},{"scenario":"Excluding the top 1 (2026-08-24)","n":13,"sum":1139,"mean":87.6154,"top_share_pct":7.8,"sum_change_pct":-7.25,"mean_change_pct":-0.11},{"scenario":"Excluding the top 3 (2026-08-24, 2026-08-21, 2026-09-01)","n":11,"sum":961.4,"mean":87.4,"top_share_pct":9.19,"sum_change_pct":-21.71,"mean_change_pct":-0.36},{"scenario":"Excluding the top 5 (2026-08-24, 2026-08-21, 2026-09-01, 2026-08-17, 2026-08-25)","n":9,"sum":785,"mean":87.2222,"top_share_pct":11.21,"sum_change_pct":-36.07,"mean_change_pct":-0.56}]}