Fig. 3
From: PCycDB: a comprehensive and accurate database for fast analysis of phosphorus cycling genes
The accuracy of PCycDB against identity and hit length. The positive predictive value (PPV, a, e), sensitivity (b, f), specificity (c, g), and negative predictive value (NPV, d, h) were recorded along with the identity varied from 0.2 to 99.9% with a step by 0.1%, and the hit length ranged from 2 to 99 amino acids with a step of one. Left dash line represents a 30% identity cutoff, and right dash line means a 70% identity cutoff