ml-distance
Version:
Distance and similarity functions to compare vectors
16 lines • 436 B
JavaScript
/**
*Returns the Gower distance between vectors a and b
* @link [Gower algorithm](https://stat.ethz.ch/education/semesters/ss2012/ams/slides/v4.2.pdf)
* @param a - first vector
* @param b - second vector
*
*/
export default function gower(a, b) {
const ii = a.length;
let ans = 0;
for (let i = 0; i < a.length; i++) {
ans += Math.abs(a[i] - b[i]);
}
return ans / ii;
}
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