Serum Metabolomics Profiling to Identify Biomarkers for Unstable Angina

Figure 3

Score plot of PLS-DA (a) for UAP and control groups, score plots indicates the separation degree between UAP (red circles) and controls (black squares) ( = 0.550, = 0.884, and Q² = 0.824), and validation of PLS-DA (b). A permutation test is conducted with 200 randomly initiated permutations in a PLS-DA model showing R² (green triangles) and Q² (blue boxes) values from the permuted analysis (left-bottom corner), and these are far lower than the associated initial values (right-top corner).

(a)

(b)