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Zero-Altered and other Regression Models for Count Data with Added Zeros

✍ Scribed by David C. Heilbron


Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
800 KB
Volume
36
Category
Article
ISSN
0323-3847

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## Abstract In many biometrical applications, the count data encountered often contain extra zeros relative to the Poisson distribution. Zero‐inflated Poisson regression models are useful for analyzing such data, but parameter estimates may be seriously biased if the nonzero observations are over‐d