Using the Tests for More Advanced AnalysesThis section shows how to use the esbacktest object to run user-defined traffic-light tests, and also how to run tests over rolling test windows.One way to define a traffic-light test is by combining the results from the unconditional normal and the unconditional t tests. Because the unconditional normal is more strict, one can define a traffic-light test with these levels:Green: The model passes both the unconditional normal and unconditional t tests.Yellow: The model fails the unconditional normal test, but passes the unconditional t test.Red: The model is rejected by both the unconditional normal and unconditional t tests.