The first step is to turn on the computer, enter "Excel" and create a new data spreadsheet.

Step 2, as shown in the figure, import spreadsheet data into eviews and click OK.

Step 3, enter "Corcoilfuture DownshindexnAgasopeurumb" in the system pop-up window to analyze the relationship between variables.

Step 4: Open the "Menu", click "Graphics" and enter the sequence name "coilfuture" in the dialog box.

Step 5, as shown in the figure, open Test Type, click Test-Intercept, set parameters, and click OK.

Step 6: After setting the parameters, click OK in the dialog box.

Co-integration test In macroeconomic econometric analysis, the co-integration method proposed by Granger( 1987) has become one of the most important tools to analyze the quantitative relationship between non-stationary economic variables. The linear adjustment mechanism between economic variables is described by the linear error correction model (ECM), which is the so-called linear co-integration method. With the development of economic theory, especially in the economic analysis of transaction costs and policy responses, the traditional linear cointegration analysis is no longer a suitable analysis method. In view of this, Balk and Fomby( 1997) put forward the so-called threshold cointegration method, describing the nonlinear adjustment mechanism between economic variables.