forecast.js

  predict = (
    data,
    a = 0.95,
    b = 0.4,
    g = 0.2,
    p = this.PERIODS_TO_PREDICT,
  ) => {
    const alpha = a;
    const beta = b;
    const gamma = g;

    const predictions = forecast(data, alpha, beta, gamma, this.OBSERVATIONS_PER_SEASON, p);
    return predictions;
  };