ModelName = 'Model 4' Direct= ['A', 'B', 'C'; 0,0,0; 1,0,0; 1,1,0] Interaction= ['A','B','C'; 0,0,0; 0,0,0; 0,0,0] Path=['A','B','C'; 0,0,0; 1,0,0; 0,2,0]