IntroducingCOZIGAM: AnRPackage for Unconstrained and Constrained Zero-Inflated Generalized Additive Model Analysis
نویسندگان
چکیده
منابع مشابه
Constrained Generalized Additive Model with Zero-Inflated Data
Zero inflation problem is very common in ecological studies as well as other areas. We propose the COnstrained Zero-Inflated Generalized Additive Model (COZIGAM) for analyzing zero-inflated data. Our approach assumes that the response follows some distribution from the zero-inflated 1-parameter exponential family, with the further assumption that the probability of zero inflation is some monoto...
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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 response variable follows a probabilistic mixture distribution of a zero atom and a regular component whose distribution belongs to some 1-param...
متن کاملIntroducing COZIGAM: An R Package for Constrained Zero-Inflated Generalized Additive Model Analysis
Zero-inflation problem is very common in ecological studies as well as other areas. Nonparametric regression with zero-inflated data may be studied via the zero-inflated generalized additive model (ZIGAM), which assumes that the zero-inflated responses come from a probabilistic mixture of zero and a regular component whose distribution belongs to the 1-parameter exponential family. With the fur...
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In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t a r t i c l e i n f o Species-occurrence data sets tend to contain a large proportion of zero values, i.e., ...
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ژورنال
عنوان ژورنال: Journal of Statistical Software
سال: 2010
ISSN: 1548-7660
DOI: 10.18637/jss.v035.i11