Raman Spectroscopy for Early Cancer Detection, Diagnosis and Elucidation of Disease-Specific Biochemical Changes - Emerging Raman Applications and Techniques in Biomedical and Pharmaceutical Fields - page 322

Fig. 13.7. Scatter plots of linear x -shifted spectra superimposed over original model.
Top x -shift 2 cm − 1 , bottom x -shift 5 cm − 1 . Solid markers are original model and
hollow markers are the shifted data. Black triangles are group centroids