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Fig. 2 | BMC Neuroscience

Fig. 2

From: Metabolomics analysis of serum in a rat heroin self-administration model undergoing reinforcement based on 1H-nuclear magnetic resonance spectra

Fig. 2

PLS-DA model generated by SIMICA-P software for comparison SA (n = 7) and control group (n = 8) (a), R2X = 45.4%, R2Y = 98.7%, Q2 = 0.946; Ellipse was given by Hotteling’s T2 (0.95); Validation plot obtained from 200 permutation tests for the PLS-DA models (b), intercept: R2 = (0.0, 0.83), Q2 = (0.0, − 0.00919). The negative Q2 intercept suggested a good predictability of the PLS-DA models

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BMC Neuroscience

ISSN: 1471-2202

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