求翻译：在进行协整检验之前，首先要确定模型的最优滞后阶数。这里我们仍然用AIC标准和FPE标准进行选择，则最优选择滞后阶数为2。是什么意思？

Before during the co-integration test, we must first determine the optimal lag order of the model. Here we still use the aic standards and fpe standards to choose the optimal choice of the lag order of 2.

In association with the test first, before the model to determine the optimal number of steps backward. Here, we will still be in FPE AIC standards and criteria to select the optimum choice, the hysteresis band count of 2.

In carries on cooperates before the entire examination, first must determine the model the most superior lag exponent number.Here we still used the AIC standard and the FPE standard carry on the choice, then the most superior choice lag exponent number was 2.

Before the Cointegration test, first determine the number of models of optimal delay order. Here we still choose AIC and FPE standards, the optimal lag order for 2.

正在翻译，请等待...