使用Cliff的delta计算效应量

🌐 Effect size with Cliff's delta

const { createHistogram } = require('node:perf_hooks');

const before = createHistogram();
const after = createHistogram();

// Record latencies before and after a change...

const delta = before.cliffsD(after);
// A delta > 0: before tends to produce larger values (improvement)
// A delta < 0: after tends to produce larger values (regression)
console.log(`Cliff's delta: ${delta.toFixed(4)}`); 拷贝