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Let X1,X2,⋯ ,Xn be a sequence of n random variables taking values in the ξ -letter alphabet set Λ = {a1,a2,⋯ ,aξ}. We consider the number N=N (n,k) of non-overlapping occurrences of a fixed k-letter ...
In a 1992 Technometrics paper, Lambert (1992, 34, 1-14) described zero-inflated Poisson (ZIP) regression, a class of models for count data with excess zeros. In a ZIP model, a count response variable ...
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