pdist - stats/pdist.ts - Ubique documentation

function pdist



pdist(x: array,
y: array,
mode?: "euclidean"
 | "manhattan"
 | "chebychev"
 | "hamming",
): number

Pairwise distance between two sets of observations.

Computes various distance metrics between two arrays including Euclidean, Manhattan, Chebyshev, and Hamming distances.

Examples

import { assertEquals } from "jsr:@std/assert";

assertEquals(pdist([0, 0], [3, 4], 'euclidean'), 5);

import { assertEquals } from "jsr:@std/assert";

assertEquals(pdist([1, 1], [4, 5], 'manhattan'), 7);

import { assertEquals } from "jsr:@std/assert";

assertEquals(pdist([1, 2], [4, 6], 'chebychev'), 4);



x: array

First input array



y: array

Second input array

optional



mode: "euclidean"
 | "manhattan"
 | "chebychev"
 | "hamming" = euclidean

Distance method ('euclidean', 'manhattan', 'chebychev', 'hamming'). Default is 'euclidean'

number

Distance value

When arrays have different lengths or invalid method specified