一般变化、膨胀、截断和收缩回归及其在堆积和渗漏数据中的应用
Generally-Altered, -Inflated, -Truncated and -Deflated Regression, With Application to Heaped and Seeped Data
摘要:
在现代回归分析中,诸如零膨胀和零改变泊松以及零截断二项分布等模型是公认的。我们提出了一个超级模型,共同和最大限度地统一的变更,通货膨胀,截断和通货紧缩的计数,给定一个1或2参数的父(基)分布。七个不相交的特殊值类型的集合被容纳,因为除了截断之外,所有的都有参数和非参数变量。一些亮点包括:(i)混合分布非常灵活,例如,多达7种模式;(ii)可以使用负二项(NB)父项来处理欠分散、等分散和过分散,其中欠分散由新的一般截断扩展方法处理;(iii)可以根据四个算子来整体地研究过分散;(iv)重要的应用:容易处理来自回顾性自报告调查的堆积和渗出数据,例如,峰值和下降,几乎位于任何地方;(v)虽然一般改变回归解释了为什么观察存在,一般膨胀回归解释了为什么它们过量存在,一般收缩回归解释了为什么观察不存在;(vi)VGAM R软件包实现了基于Fisher评分和多项logit模型的方法(实现了Poisson,NB,zeta和对数父母)。GAITD-NB有可能成为计数分布的瑞士军刀。
英文摘要:
Models such as the zero-inflated and zero-altered Poisson and zero-truncated binomial are well-established in modern regression analysis. We propose a super model that jointly and maximally unifies alteration, inflation, truncation and deflation for counts, given a 1- or 2-parameter parent (base) distribution. Seven disjoint sets of special value types are accommodated because all but truncation have parametric and nonparametric variants. Some highlights include: (i) the mixture distribution is exceeding flexible, e.g., up to seven modes; (ii) under-, equi- and over-dispersion can be handled using a negative binomial (NB) parent, with underdispersion handled by a novel Generally-Truncated-Expansion method; (iii) overdispersion can be studied holistically in terms of the four operators; (iv) an important application: heaped and seeped data from retrospective self-reported surveys are readily handled, e.g., spikes and dips which are located virtually anywhere; (v) while generally-altered regression explains why observations are there, generally-inflated regression accounts for why they are there in excess, and generally-deflated regression explains why observations are not there; (vi) the VGAM R package implements the methodology based on Fisher scoring and multinomial logit model (Poisson, NB, zeta and logarithmic parents are implemented.) The GAITD-NB has potential to become the Swiss army knife of count distributions.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。