Likelihood Ratio Test results for comparison of the linear mixed effects models used in relPeakF prediction.

The ratio describes the increase in goodness of fit (as measured by the log likelihood) for the first model compared to the second model, e.g. the difference in the log likelihood between the 6 h PCA baseline and the 6 h fPCA baseline models is 16.32. Here the better model is the one shown to have a statistically significant difference in likelihood.