All files / lib/awareness/collective/analysis analysis-utils.ts

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// src/lib/awareness/collective/analysis/analysis-utils.ts
export function average(nums: number[]): number {
  return nums.length ? nums.reduce((a, b) => a + b, 0) / nums.length : 0;
}
 
export function variance(nums: number[]): number {
  const avg = average(nums);
  return average(nums.map((n) => Math.pow(n - avg, 2)));
}
 
export function stdDev(nums: number[]): number {
  return Math.sqrt(variance(nums));
}