[Retracted] Identification of Serum Metabolomics Characteristics in Patients with Stable Angina Pectoris Using UHPLC-QE-MS

Figure 3

Volcano plot: each dot in the volcano map represents a metabolite containing all the substances measured in this study. (a) The abscissa represents the multiple changes of the group compared to each substance (the logarithm based on 2), and the ordinate represents the value of the Student’s -test (the negative logarithm based on 10). (b) The size of dots represents the VIP value of OPLS-DA model (the larger the dot, the larger the VIP value; upregulated metabolites in red, downregulated metabolites in blue, and nonsignificant metabolites in gray).

(a)

(b)