Fig. 2
From: Development of a nomogram for predicting the presence of combined pulmonary fibrosis and emphysema
Correlation networks for pulmonary function index among groups. Networks showed different profiles of correlations in CPFE and IPF patients. The width of the edge is proportional to the absolute value of correlation strength (|r|). Edges were shown only when |r|> 0.2. A blue edge indicates a positive correlation, and an orange edge indicates a negative correlation