Bulletin of the Faculty of Agriculture, Shimane University

Faculty of Agriculture, Shimane University

ISSN:0370-940X

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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/1756

Bulletin of the Faculty of Agriculture, Shimane University 16

1982-12-20 発行

対数正規分布とその応用(第1報) : 直径分布へのあてはめ

Lognormal distribution and its applications : Fitting to diameter distributions

Yamamoto, Mitsuo

Yasui, Hitoshi

Honda, Hideaki

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Diameter distributions of Jack pine can be discribed by the three-parameter lognormal distribution, in which the variate is x=log(y+y_0). Agreement between the observed and the expected frequencies is tested by the chi-square test. On comparing the normal and the lognormal distributions the normal achieves a good fit to the young stands and the lognormal does to the old stands.

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