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. Author manuscript; available in PMC: 2019 Jul 18.
Published in final edited form as: Metabolomics. 2018 Aug 10;14(8):108. doi: 10.1007/s11306-018-1400-6

Figure 5.

Figure 5

A plot of the average Pearson correlation coefficients (eqn. 4) calculated by comparing the true backscaled loadings from the original coffee dataset OPLS-DA model relative to the backscaled loadings from the CS (♦), PQ (■), and ROI (▲) normalized coffees noisy dataset OPLS-DA model. The amount of signal variance introduced into the coffees dataset is described in Table 2. The error bars represent ±2*standard error of the mean. Please note that most of the error bars are smaller than the size of the symbols.