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Table 2 Estimation of the sources of variation in the data set. The SS and the MS for the different sources of variation are given, based on the experimental design presented in Figure 2. *The technical source of variation consists of the analytical error and the sample work-up error.

From: Centering, scaling, and transformations: improving the biological information content of metabolomics data

Source of variation SS MS
Analytical 0.0205 0.0102
Technical* 0.0482 0.0482
Uninduced biological 0.208 0.104
Induced biological 0.952 0.317
Total SS 1.23