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Replace some means in Stats with medians #3900

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Merged
dae merged 11 commits into from
Apr 11, 2025
Merged

Replace some means in Stats with medians #3900

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595c255
Display median interval in Stats instead of mean
user1823 Apr 6, 2025
fc6103d
Display median ease in Stats instead of mean
user1823 Apr 6, 2025
148153d
Update difficulty.ts
user1823 Apr 6, 2025
c637126
Update ease.ts
user1823 Apr 6, 2025
1ae6536
Update statistics.ftl
user1823 Apr 6, 2025
e57c880
Format eases.rs
user1823 Apr 6, 2025
a52e91c
Remove unused import
user1823 Apr 6, 2025
e0c1e3f
Change Median back to Average in UI
user1823 Apr 6, 2025
a7258f4
Merge branch 'main' into patch-2
dae Apr 10, 2025
5f9d6d5
Revert "Change Median back to Average in UI"
dae Apr 11, 2025
5f98c45
Preserve the old translations for now
dae Apr 11, 2025
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Display median interval in Stats instead of mean 
Median is better suited than mean for reporting skewed data.
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@user1823
user1823 authored Apr 6, 2025
commit 595c255ca3d5c13aaac83a879fa36e8dd792d8e2
8 changes: 4 additions & 4 deletions ts/routes/graphs/intervals.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -168,12 +168,12 @@ export function prepareIntervalData(
dispatch("search", { query });
}

const meanInterval = Math.round(mean(allIntervals) ?? 0);
const meanIntervalString = timeSpan(meanInterval * 86400, false);
const medianInterval = Math.round(quantile(allIntervals, 0.5) ?? 0);
const medianIntervalString = timeSpan(medianInterval * 86400, false);
const tableData = [
{
label: fsrs ? tr.statisticsAverageStability() : tr.statisticsAverageInterval(),
value: meanIntervalString,
label: fsrs ? tr.statisticsMedianStability() : tr.statisticsMedianInterval(),
value: medianIntervalString,
},
];

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