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Journal of Spectroscopy
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Journal of Spectroscopy
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2013
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Article
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Fig 3
/
Research Article
Rapid Analysis of Geographical Origins and Age of
Torreya grandis
Seeds by NIR Spectroscopy and Pattern Recognition Methods
Figure 3
ROBPCA outlier diagnosis plots of the three classes of seed kernels based on raw spectra (4000–9000 cm
−1
).
(a)
(b)
(c)