《Table 2 Comparison of the results by one-step and multi-step strategy for the diesel fuel dataset》下
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《A variable importance criterion for variable selection in near-infrared spectral analysis》
a) Number for n Var(number of selected variables),RMSECVand R is the mean value and the number in the parentheses is the standard deviation over the100 independent runs;b) number of latent variables.
To verify the rationality of the C value,five spectral bands with higher(than Q3)and lower(than Q1)C value are investigated.As indicated by the red and blue bars in the figure,the spectral intervals of 1228–1242,1292–1310,1470–1486,1280–1288 and 1490–1550 nm were studied.The former three bands should have positive contributions to the model,and the latter two bands should have negative effects on the model.Taking the full spectra model as a reference,the results obtained by removing the variables in the five spectral intervals are compared in Table 1.
图表编号 | XD0034633900 严禁用于非法目的 |
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绘制时间 | 2019.02.01 |
作者 | Jin Zhang、Xiaoyu Cui、Wensheng Cai、Xueguang Shao |
绘制单位 | Research Center for Analytical Sciences, College of Chemistry, Nankai University、Research Center for Analytical Sciences, College of Chemistry, Nankai University、Research Center for Analytical Sciences, College of Chemistry, Nankai University、Research Cen |
更多格式 | 高清、无水印(增值服务) |
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