The Displaced Poisson Distribution—Region B
移位泊松分布:B 参数区域AI 解读 ↓
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移位泊松分布:B 参数区域AI 解读 ↓
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The two-parameter (λ, r) probability function which arises from a generalization, px =λpx -1/(x+r), of the recurrence relationship between successive probabilities of a Poisson process, has been termed the ‘Displaced Poisson Distribution’ and is considered here over the parameter space λ > 0, r ≤ 0. Properties of the distribution are examined and estimators, when r is known and unknown, are derived by the methods of moment(s) and first frequency and by maximum likelihood. Two sets of underdispersed (biological) data are fitted by the suggested methods, which are straightforward when either a desk machine or computer is used.