This module provides basic statistical functions for numeric arrays,
including calculation of sum, average (mean), and median. It also includes
a constant value for π (pi), and a custom error class for input validation.
Designed for educational, analytical, or general-purpose statistical
processing in JavaScript projects.
Example
import { average, median, PI } from './stats.js';
const numbers = [1, 2, 3, 4, 5];
console.log(average(numbers)); // 3
console.log(median(numbers)); // 3
console.log(PI); // 3.14