Fig. 3From: A NMF based approach for integrating multiple data sources to predict HIV-1–human PPIsScale-free topology fitting index (R 2) at different threshold value (β) At β=9 the metric \(\frac {log(p(k))}{log(k)}\) converges to 1. The red line signifies the value of β for which the network obeys scale free propertyBack to article page