PC1 PC2 SampleID -1.07206011765619 0.993151633993755 S-R1 -0.710937369773474 -0.370794784065097 S-T1 1.98505191015524 -0.192692628692579 S-S1 -0.384777728703406 0.628336376638849 S-R2 -1.51270507760763 -1.00343248996101 S-T2 1.69542838358545 -0.0545681079139182 S-S2