Runzhou Lu, Hong Jiang, Ji Man, Juan Chen, Bin Duan, Feng Liu. Classification of Cigarette Cases by X-Ray Fluorescence Spectrometry Combined with Differential Raman Spectroscopy[J]. Laser & Optoelectronics Progress, 2022, 59(5): 0530003
- Laser & Optoelectronics Progress
- Vol. 59, Issue 5, 0530003 (2022)
Fig. 1. Raman spectrum's pretreatment of sample 6
Fig. 2. Dendrogram of 39 cigarette case samples using hierarchical clustering
Fig. 3. Line chart of clustering coefficients
Fig. 4. Raman spectra of 39 cigarette case samples
Fig. 5. Differential Raman spectra of 39 cigarette case samples
Fig. 6. Fisher discriminant function distribution
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Table 1. Table of cigarette case samples
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Table 2. Classification results of samples using hierarchical clustering
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Table 3. Total variance interpretation
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Table 4. Classification results of samples using K-Means clustering
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Table 5. Canonical discriminant function coefficients
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Table 6. Eigenvalues of discriminant functions
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Table 7. Wilks' λ
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