Fig. 8.

Histograms showing mean relative improvement of the spectral fit MAE for the presented scattering model, compared with the linear model, across all piglets in the dataset for (a) all wavelengths, (b) in the range 740 to 780 nm, and (c) in the range 780 to 900 nm in the broadband NIRS dataset. The $x$-axis represents the relative improvement $r$ between the two models, and the $y$-axis shows the number of piglets that achieved the corresponding mean relative improvement $r$. The dashed line signifies improvements below zero, i.e., cases where the spectral fit worsened.