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. 2021 Sep 13;11:18160. doi: 10.1038/s41598-021-97505-y

Figure 4.

Figure 4

The cross-validated PLS-DA scores (a) and weights (c) plots obtained from the model 2 differentiating the patients according to the disease stage (2 components, R2X = 44.1%, R2Y = 44.6%, Q2 = 36.2%). The cross-validated PLS-DA scores (b) and weights (d) plots obtained from the model 3 differentiating the patients according to the tumor grade (2 components, R2X = 44.8%, R2Y = 70.4%, Q2 = 46.7%). The points in the scores plots are marked according to the disease stage and tumors grade, while the points in the weights plots are labeled according to the chemical shifts. For clarity, the most important chemical shifts are presented. The scores plots (a,b) were created using SIMCA-P 15.0 software package (https://www.sartorius.com). The weights plots (c,d) were created using Statistica 12.5 software (www.statsoft.pl) based on data exported from SIMCA-P 15.0 software package (https://www.sartorius.com).