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Semiparametric regression analysis of zero-inflated data Part of the Statistics and Probability Commons Recommended Citation SEMIPARAMETRIC REGRESSION ANALYSIS OF ZERO-INFLATED DATA Title and Department Date SEMIPARAMETRIC REGRESSION ANALYSIS OF ZERO-INFLATED DATA
2009
unpublished
Zero-inflated data abound in ecological studies as well as in other scientific and quantitative fields. Nonparametric regression with zero-inflated response may be studied via the zero-inflated generalized additive model (ZIGAM). ZIGAM assumes that the conditional distribution of the response variable belongs to the zero-inflated 1-parameter exponential family which is a probabilistic mixture of the zero atom and the 1-parameter exponential family, where the zero atom accounts for an excess of
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