Zero-Inflated Data

By W. Tu. 2006

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Inflated beta distributions (2007, background): “07 00 v3 [ st at Keywords and Phrases: Beta distribution; inflated beta distribution; fractional data; maximum likelihood estimation; conditional moments; mixture; proportions.”
Development of a formal likelihood function for improved Bayesian inference of ephemeral catchments (2010, methodology): “The use of a zero/nonzero mixture model is not entirely new in environmental applications [see Tu, 2002], dating back to the 1950s and the delta model introduced by Aitchison [1955], but it has been used more recently in medical cost data applications [see Tu and Zhou, 1999; Zhou and Tu, 1999,…”