Elasticity and viscosity error box plots aggregated by vertical
position, the top ten plots are results for the CNNs trained, validated and
tested on data from the same and different F/N datasets, whereas the bottom four
were evaluated using Fourier analysis (FT) for comparison. The letter designates
what label was used, elasticity (E) or viscosity (V); the first number specifies
the F/N used for training and validation, whereas the second number designates
the F/N used for testing.