수산경영론집 (The Journal of Fisheries Business Administration)
- 제14권2호
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- Pages.1-14
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- 1983
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- 1225-1011(pISSN)
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- 2288-1727(eISSN)
PCA에 의한 도서분류에 관한 연구( I )
A Study on the Classification of Islands by PCA ( I )
초록
This paper considers a classification of the 88 islands located at Kyong-nam area in Korea, using by examples of 12 components of the islands. By means of principal component analysis 2 principle components were extracted, which explained a total of 73.7% of the variance. Using an eigen variable criterion (λ>1), no further principle components were discussed. Principal component 1 and 2 explained 63.4% and 10.3% of the total variance respectively, The representation of the unrelated factor scores along the first and second principal axes produced a new information with respect to the classification of the islands. Based upon the representation, 88 islands were classified into 6 groups i. e. A, B, C, D, E, and F according to similarity of the components among them in this paper. The "Group F" belongs to a miscellaneous assortment that does not fit into the logical category. category.
키워드