UNPKG

vega-statistics

Version:

Statistical routines and probability distributions.

18 lines (13 loc) 420 B
import {visitPoints} from './points.js'; // Adapted from d3-regression by Harry Stevens // License: https://github.com/HarryStevens/d3-regression/blob/master/LICENSE export default function(data, x, y, uY, predict) { let SSE = 0, SST = 0; visitPoints(data, x, y, (dx, dy) => { const sse = dy - predict(dx), sst = dy - uY; SSE += sse * sse; SST += sst * sst; }); return 1 - SSE / SST; }