Method _prepTraining

src/neural-network.js:422–439

* * @param data * @param options * @protected * @return { data, status, endTime }

(data, options)

   * @return { data, status, endTime }
   */
  _prepTraining(data, options) {
    this._updateTrainingOptions(options);
    data = this._formatData(data);
    const endTime = Date.now() + this.trainOpts.timeout;

    const status = {
      error: 1,
      iterations: 0
    };

    this._verifyIsInitialized(data);

    return {
      data,
      status,
      endTime
    };
  }

  /**
   *