Goes in infitie loop with some data

[exebetche]

It's all in the title, with this simple data the script never stops. Am I missing something her e?

import Loess from "loess";

const data = {
  x: [
    19815, 19810, 19809, 19805, 19801, 19798, 19785, 19782, 19780, 19760, 19760,
    19760, 19725,
  ],
  y: [0.5, 1, 1, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5],
  w: [
    2265025, 3904576, 2253001, 4108729, 1236544, 4511376, 138532900, 1234321,
    1806336, 1838736, 1838736, 1838736, 1188100,
  ],
};

const loessOptions = {};
const model = new Loess(data, loessOptions);
const fit = model.predict();

[mmarkell]

I've figured this one out @exebetche --

Math.js median operation hangs on NaN inputs: https://github.com/josdejong/mathjs/issues/1214

I just stepped through the repo and verified this is what is triggered in your case.

One solution is to upgrade the dependency of math.js, but I don't have enough time to debug why exactly they're nan in the first place...

Adding a patch here https://github.com/yongjun21/loess/issues/11

[mmarkell]

(but really the solution should be to make mathjs a peer dependency with version > 5.1.1