Fig. 2 | Scientific Reports

Fig. 2

From: Visualization OPLS class models of GC-MS-based metabolomics data for identifying agarwood essential oil extracted by hydro-distillation

Fig. 2

The PLS-DA obtained scatter plot, (a) classification of AEOs in three genotypes; (c) classification of CAN and OCA areas, and 200 permutations of PLS-DA model validation results (b, d). The scatter plot of OPLS-DA, (e) classification of CAN and OCA areas, and the verification results of 200 permutation of OPLS-DA models (f). S: A.sinensis, M: A.malaccensis, C: A.crassna, CNA: AEOs from China (S1-S3 samples). OCA: AEOs from outside of China (S4-S7 samples). R2: Coefficient of determination, Q2: squared cross-validation. The Hotelling’s T2 analysis showed that all samples were within the 95% confidence interval, and no samples beyond this confidence interval were found, so there was no significance.

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