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Displaced Poisson distribution : ウィキペディア英語版 | Displaced Poisson distribution In statistics, the displaced Poisson, also known as the hyper-Poisson distribution, is a generalization of the Poisson distribution. The probability mass function is : where and ''r'' is a new parameter; the Poisson distribution is recovered at ''r'' = 0. Here is the incomplete gamma function and ''s'' is the integral part of ''r''. The motivation given by Staff is that the ratio of successive probabilities in the Poisson distribution (that is ) is given by for and the displaced Poisson generalizes this ratio to . ==References==
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「Displaced Poisson distribution」の詳細全文を読む
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