Method trainPattern

src/recurrent/rnn.js:185–190

* * @param {Number[]} input * @param {Number} [learningRate] * @returns {number}

(input, learningRate = null)

   * @returns {number}
   */
  trainPattern(input, learningRate = null) {
    const error = this.runInput(input);
    this.runBackpropagate(input);
    this.step(learningRate);
    return error;
  }

  /**
   *