ml-distance/src/similarities/intersection.ts

Distance and similarity functions to compare vectors

import { NumberArray } from 'cheminfo-types';

import intersectionD from '../distances/intersection';
/**
 *Returns the Intersection similarity distance between vectors a and b
 * @link [Intersection similarity algorithm](https://www.naun.org/main/NAUN/ijmmas/mmmas-49.pdf)
 * @param a - first vector
 * @param b - second vector
 *
 */
export default function intersection(a: NumberArray, b: NumberArray): number {
  return 1 - intersectionD(a, b);
}