Shu LIU, Bo ZHANG, Hong MIN, Ya-rui AN, Zhi-xiu ZHU, Chen LI. X-Ray Fluorescence Spectroscopy Combined With Discriminant Analysis to Identify Imported Iron Ore Origin and Brand: Application Development[J]. Spectroscopy and Spectral Analysis, 2021, 41(1): 285
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 1, 285 (2021)
Fig. 1. Data processing flow chart
Fig. 2. Bar chart of elemental content in different countries
Fig. 3. Classification error brand and its misjudged brand scatter plot
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Table 1. The information of iron ore samples
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Table 2. Measurement results without standard analysis method
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Table 3. Comparison of four missing value processing methods
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Table 4. Sample residual variance, model residual variance, F value, critical value and degree of freedom of the abnormal sample
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Table 5. National discriminant model specific discriminant results
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Table 6. Brand discriminant model specific discriminant results
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