s="p">(</span><span class="n">y</span><span class="p">)</span> <span class="o">-</span> <span class="n">estimator_fitted</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">arma_</span> <span class="o">=</span> <span class="n">ARIMA</span><span class="p">(</span><span class="n">estimator_resid</span><span class="p">,</span> <span class="n">order</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">)</span