Fig. 1From: Extracting predictors for lung adenocarcinoma based on Granger causality test and stepwise character selectionFlow chart of Granger Causality Test. The Pearson correlation test adapts p-value < 0.01 as threshold, and the other three: the unit root test, co-integration test and Granger causality test adapt p-value < 0.05 as thresholdBack to article page