percentile

percentile(array, p) → number · Math

Compute the p-th percentile of a numeric array.

• array (required): array of numbers

• p (required): percentile value 0-100

echo '{"scores": [72, 85, 90, 95, 88, 76, 92]}' | utlx -e 'percentile($input.scores, 90)'
# ~94.2 (90th percentile)

Also: iqr(array) — interquartile range, quartiles(array) — [Q1, Q2, Q3].