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arXiv 1003.2294stat.MEmath.STstat.TH
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回归模型的一个简单失拟检验

A Simple Lack-of-Fit Test for Regression Models

Jean-Baptiste Aubin, Samuela Leoni-Aubin

摘要:

一个简单的测试,提出了一个给定的完全指定的响应函数对未指定的一般替代品的情况下,一元回归的正确性检查。基于残差图的常用诊断工具是有用的,但启发式的。我们引入一个正式的统计测试补充图形分析。从技术上讲,检验统计量是候选回归函数连续高估或低估的有序(相对于协变量)观测序列的最大长度。请注意,测试过程可以处理异方差误差和没有重复。给出了在原假设和一类备择假设下计算检验统计量精确分布的递推公式。

英文摘要:

A simple test is proposed for examining the correctness of a given completely specified response function against unspecified general alternatives in the context of univariate regression. The usual diagnostic tools based on residuals plots are useful but heuristic. We introduce a formal statistical test supplementing the graphical analysis. Technically, the test statistic is the maximum length of the sequences of ordered (with respect to the covariate) observations that are consecutively overestimated or underestimated by the candidate regression function. Note that the testing procedure can cope with heteroscedastic errors and no replicates. Recursive formulae allowing to calculate the exact distribution of the test statistic under the null hypothesis and under a class of alternative hypotheses are given.

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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