Fluorescence measurements can follow changes in an industrial sugar process over time. This release contains 268 eight-hour shift-average samples collected during a three-month autumn 1995 campaign at the final centrifuge operation of a Scandinavian sugar plant. data.mat provides X (268 x 3997), with DimX [268, 571, 7] mapping the unfolded fluorescence matrix to sample x emission x excitation. EmAx covers 275-560 nm in 0.5 nm steps; ExAx contains seven excitation wavelengths. The file also includes y quality variables for colour and ash, Lab laboratory measurements, Proc process measurements, time codes, and dimension vectors. Missing Lab and Proc values are retained as NaN.
Bro, R. (1999). Exploratory study of sugar production using fluorescence spectroscopy and multi-way analysis. Chemometrics and Intelligent Laboratory Systems, 46(2), 133-147. https://doi.org/10.1016/S0169-7439(98)00181-6
