Figure 4From: Functional clustering of time series gene expression data by Granger causality (a) Four independent sub-networks without Granger causality between them; (b) Four sub-networks in a cyclic graph; (c) Feedback loop between sub-networks A and B; (d) A network between sub-networks, where sub-networks A only sends Granger causality and D only receives Granger Causality. Back to article page