Figure 4
From: Visualizing the GPCR Network: Classification and Evolution

The distance distribution between GPCR and non-GPCR sequences and the minimum distance distribution of a GPCR sequence to other GPCR sequences in the base dataset (a), and the F measure for the detection of GPCR sequences based on the MSC results of the base dataset as a function of the threshold value V t (b). Here the F measure is defined as F = 2·precision·recall/(precision + recall).