Application of principal component analy
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Giuseppe Musumarra; Svante Wold; Salo Gronowitz
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Article
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1981
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John Wiley and Sons
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English
β 461 KB
## Abstract ^13^C NMR shifts of 54 chalcones and their thiophene and furan analogues are analyzed by principal component analysis. Thus, a mathematical model is derived for the variation of the carbon shifts in each of seven classes. Two component models are found to be adequate by crossβvalidation