Research Article
Age Discrimination of Chinese Baijiu Based on Midinfrared Spectroscopy and Chemometrics
Table 1
Distribution of Chinese spirit samples.
| | Type | Num. of samples | Training set | Test set |
| | Raw spirit | 20 | 15 | 5 | | 1-year aged | 20 | 15 | 5 | | 3-year aged | 20 | 15 | 5 | | 5-year aged | 20 | 15 | 5 | | Total | 80 | 60 | 20 |
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