Outcome of numerical discrimination for raw vibrational amplitude spectra.

One averaged spectral measurement is collapsed onto a 3D point with coordinates named DF score 1, 2, and 3. Black dots: low amplitude state measurements (any colony 2, 5, 6, 7 or 15). Other dots: high amplitude state measurements for Colony 5 (red), 2 (blue), 6 (green), 7 (cyan) and 15 (magenta). Good discrimination is achieved for 30 minute long measurements except for Colony 6. The last figure gives the discriminant functions, which must be cross-correlated with the mean spectrum to give DF score 1, 2 and 3.