@njam-data/diversity-index

Based on the USA Today diversity index.

Install

npm i @njam-data/diversity-index

Examples

creating an index from one factor

const race = [0.7, 0.3]
const result = diversityIndex([
  race
])
console.log('result', result)
// result === 0.42

creating an index from two factors

const race = [0.3, 0.2, 0.1, 0.5]
const ethnicity = [0.1, 0.9]
const result = diversityIndex([
  race,
  ethnicity
])
console.log('result', result)
// result === 0.75

See also

• https://www.academia.edu/860996/The_USA_Today_index_of_ethnic_diversity
• https://gist.github.com/eyeseast/a1288c5df88187b457f4