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. Author manuscript; available in PMC: 2012 Oct 5.

Published in final edited form as: Anal Chem. 2008 Oct 1;80(21):8002–8011. doi: 10.1021/ac800998j

PCA scores plots of PARAFAC signal volume patterns for each metabolite, normalized as explained in the text. The same six metabolites shown in Figures 5 (and 6) are indicated on these plots with letters corresponding to Figures 5 (and 6). (A) PCA results with time course information when only injection replicates are averaged. There are 16 classes (WR, WDR, SR, SDR) × (0.5, 2, 4, 6 h). (B) PCA results when all injections, and time points are averaged for a given growth condition and yeast strain. There are four classes (WR, WDR, SR, SDR). (C) PCA results for a single time, 4 h. There are four classes (WR, WDR, SR, SDR).

PCA scores plots of PARAFAC signal volume patterns for each metabolite, normalized as explained in the text. The same six metabolites shown in Figures 5 (and 6) are indicated on these plots with letters corresponding to Figures 5 (and 6). (A) PCA results with time course information when only injection replicates are averaged. There are 16 classes (WR, WDR, SR, SDR) × (0.5, 2, 4, 6 h). (B) PCA results when all injections, and time points are averaged for a given growth condition and yeast strain. There are four classes (WR, WDR, SR, SDR). (C) PCA results for a single time, 4 h. There are four classes (WR, WDR, SR, SDR).