CIELAB a* measurements of fresh Longissimus dorsi beef under a reduced six-way storage design. Color_of_Beef.mat contains X (5 x 3 x 3 x 3 x 6 x 5) for storage day (0, 3, 7, 8, 10), temperature (2, 5, 8 C), light exposure (0%, 50%, 100%), oxygen (40%, 60%, 80%), six muscles, and five replicates. Higher a* values indicate redder color. Because only selected factor combinations were measured, unmeasured combinations are represented as NaN in X. Table contains the 1,620 measured design rows and responses; Modes, ModeLabel, and ModeLevel define the factors for GEMANOVA and interaction analysis.
Bro, R.; Jakobsen, M. (2002). Exploring complex interactions in designed data using GEMANOVA. Color changes in fresh beef during storage. Journal of Chemometrics, 16(6), 294-304. https://doi.org/10.1002/cem.722