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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Davis distribution ： ウィキペディア英語版 Davis distribution -1 \right) \Gamma(n) \zeta(n) } Where $\backslash Gamma(n)$ is the Gamma function and $\backslash zeta(n)$ is the Riemann zeta function | cdf =| mean =$\backslash begin$ \mu + \frac & \text\ n>2 \\ \text & \text\ \end | median = | mode =| variance = $\backslash begin$ \frac^2} & \text\ n>3 \\ \text & \text\ \end | skewness =| kurtosis =| entropy =| mgf =| char =| }} In statistics, the Davis distributions are a family of continuous probability distributions. It is named after Harold T. Davis (1892–1974), who in 1941 proposed this distribution to model income sizes. (''The Theory of Econometrics and Analysis of Economic Time Series''). It is a generalization of the Planck's law of radiation from statistical physics. ==Definition== The probability density function of the Davis distribution is given by :$f(x;\backslash mu,b,n)=\backslash frac\; \}\}\; -1\; \backslash right)\; \backslash Gamma(n)\; \backslash zeta(n)\; \}$ where $\backslash Gamma(n)$ is the Gamma function and $\backslash zeta(n)$ is the Riemann zeta function. Here μ, ''b'', and ''n'' are parameters of the distribution, and ''n'' need not be an integer. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Davis distribution」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.