Table 2. Correlation matrix of LC/MS data and principal components.
raw | f-1 | f-2 | f-3 | 1h1 | 1h2 | o/1 | o/2 | 2y1 | 2y2 | 2y3 | 3y |
---|---|---|---|---|---|---|---|---|---|---|---|
PC1 | 0.97 | 0.92 | 0.97 | 0.97 | 0.98 | 0.95 | 0.96 | 0.74 | 0.88 | 0.98 | 0.96 |
PC2 | -0.11 | 0.28 | -0.10 | -0.12 | -0.12 | -0.08 | -0.20 | 0.64 | 0.40 | -0.00 | -0.12 |
PC3 | -0.02 | 0.19 | -0.12 | -0.00 | -0.01 | 0.23 | -0.07 | 0.17 | 0.13 | -0.00 | -0.12 |