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 321

Fig. 13.5. A display of overall contribution of each PC to the power of the dis-
criminant model. This is achieved by multiplying the score of each PC by the LD
function weights (Fig. 13.4 ( top )and( bottom ))

100

90

80

70

60

50

40

30

20

10

0

-20 -15 -10 -5 0 5 10 15 20

Linear Shift

Fig. 13.6. The effect of a linear shift on the spectra between -20 and +20 cm − 1 in
steps of 0 . 2cm − 1