cd76829262
https://www.easycalculation.com/statistics/percentile-rank.php Feel free to try and one-linerify it if possible, lol
19 lines
408 B
Markdown
19 lines
408 B
Markdown
### Percentile
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Calculate how many numbers are below the value and how many are the same value and
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apply the percentile formula.
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```js
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const percentile = (arr, val) => {
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let below = 0, same = 0;
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for (const number of arr) {
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if (number < val) below++;
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if (number === val) same++;
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}
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return 100 * (below + (0.5 * same)) / arr.length;
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};
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// percentile([1,2,3,4,5,6,7,8,9,10], 6) -> 55
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```
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