Table 9. PLS-DA Models for Calibration by the Race/Ethnicity of Dyed Hair (DH) and Undyed Hair (UH) FT-IR Spectra.
| DH FT-IR |
actual race/ethnicity |
UH FT-IR | actual race/ethnicity |
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
| predicted race/ethnicity | accuracy, % | Asian (n = 24) | Caucasian (n = 36) | Hispanic (n = 24) | Indian (n = 36) | accuracy, % | Asian (n = 24) | Caucasian (n = 36) | Hispanic (n = 24) | Indian (n = 36) |
| Asian | 25.0 | 6 | 5 | 3 | 6 | 91.7 | 22 | 1 | 0 | 0 |
| Caucasian | 41.7 | 6 | 15 | 4 | 2 | 88.9 | 2 | 32 | 2 | 4 |
| Hispanic | 54.2 | 6 | 7 | 13 | 6 | 79.2 | 0 | 2 | 19 | 8 |
| Indian | 61.1 | 6 | 9 | 4 | 22 | 66.7 | 0 | 1 | 3 | 24 |