fig3

Figure 3. We present the obtained population causal adjacency matrix and the process of constructing the overall causal graph in Figure 3A and B. (A) the obtained population causal adjacency matrix. The value in the matrix represents the causal strength of the corresponding variable in the row to the corresponding variable in the column; (B) According to the threshold value, variables with fewer parent nodes are selected to be added to the causal graph in turn, and the overall causal graph is obtained in the fourth step.