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arXiv 1304.8089stat.ME
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区间变量的分布与对称分布回归模型

Distribution and Symmetric Distribution Regression Model for Interval-Valued Variables

Sónia Dias, Paula Brito

摘要:

符号数据分析使用的变量是每个单元或单元类采用一组有限的值/类别、区间或分布(例如直方图)。当每个观测值对应于一个经验分布时,我们就有了一个直方图值变量;如果每个单位只在一个概率等于1的区间上取值,那么它就简化为区间值变量的情况。分布和对称分布是一个线性回归模型,用于直方图值变量,可以特殊化为区间值变量。该模型定义为n个解释变量,并基于区间内考虑的分布。在本文中,我们研究的特殊情况下,均匀分布假定在每个观察区间。在经典的情况下,拟合优度的措施推导出的模型。一些说明性的例子。模拟研究允许讨论该变量类型的模型的行为的解释。

英文摘要:

Symbolic Data Analysis works with variables for which each unit or class of units takes a finite set of values/categories, an interval or a distribution (an histogram, for instance). When to each observation corresponds an empirical distribution, we have a histogram-valued variable; it reduces to the case of an interval-valued variable if each unit takes values on only one interval with probability equal to one. Distribution and Symmetric Distribution is a linear regression model proposed for histogram-valued variables that may be particularized to interval-valued variables. This model is defined for n explicative variables and is based on the distributions considered within the intervals. In this paper we study the special case where the Uniform distribution is assumed in each observed interval. As in the classical case, a goodness-of-fit measure is deduced from the model. Some illustrative examples are presented. A simulation study allows discussing interpretations of the behavior of the model for this variable type.

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。

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