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拟合优度检验

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For example: locally most powerful rank tests; regression and the analysis of variance using ranks; asymptotic power and efficiency; goodness of fit tests; permutation tests and randomization as a basis for inference.

局部最大功效秩检验(;利用秩进行回归和方差分析;渐进功效和效率,拟合优度检验,排列检验和作为推断基础的随机化。

Only in cauchy distribution are expected value and variance non-exist. By sas programming with SQL and MACRO we solve the fit of frequency distributions of data with these distributions. Meanwhile good-of-fit test is actualized so that the bound of parameters of distribution function is dwindling until the desired accuracy is arrived. The process is executed by the circle of macro.

利用SAS的SQL和MACRO等语句编写了大量的程序,以拟合优度检验结果为标准,不断地变换八种分布的参数变化范围,通过宏程序的不断循环,逐步缩小参数的范围,最后达到预先设定的标准,从而可以发现八种分布中哪几种分布能比较好地拟合给定的实际频数资料,我们再根据拟合优度检验的结果判断出哪种分布拟合实际频数资料最好,最终获得该频数资料的最佳的理论分布函数形式。

A systematic introduction is given to a class of new high power goodness-of-fit test based on EDF (Empirical Distribution Function), which comes to be used in the last decade, and a study on the logistic structure and sample size modified method of this class of statistics is conducted.

系统介绍了近年来发展起来的一类以EDF统计量为基础的高效母体分布拟合优度检验方法,探讨了这类检验方法的逻辑结构和子样容量修正方式。

The main content of preparation before scoring is selection of characteristics, which mainly uses Logistic regression, contingency table analysis and artificial neural network. Personal credit scoring and evaluation mainly uses general discriminant analysis, refined decision tree model, improved genetic algorithm, probability neural network and behavioral scoring model. The effect test of personal credit scoring includes fitting effect test and fitness test. The former involves right prediction rate, Kappa consistency test, ROC curve, and the latter includes likelihood ratio test, Hosmer-Lemeshow test, etc.

评分前的准备工作主要是特征变量的筛选,其中使用的主要方法为Logisitic回归、列联表分析和人工神经网络;本文使用的个人信用评分与评估方法为广义判别分析、精练决策树模型、改进遗传算法、概率神经网络和行为评分模型;个人信用评估的效果检验包括拟合效果检验和拟合优度检验两个方面,前者涉及的方法有预测的正确率、Kappa一致性检验、ROC曲线,后者主要包括似然比检验、Hosmer-Lemeshow检验等。

The former involves right prediction rate, Kappa consistency test, ROC curve, and the latter includes likelihood ratio test, Hosmer-Lemeshow test, etc.

评分前的准备工作主要是特征变量的筛选,其中使用的主要方法为Logisitic回归、列联表分析和人工神经网络;本文使用的个人信用评分与评估方法为广义判别分析、精练决策树模型、改进遗传算法、概率神经网络和行为评分模型;个人信用评估的效果检验包括拟合效果检验和拟合优度检验两个方面,前者涉及的方法有预测的正确率、Kappa一致性检验、ROC曲线,后者主要包括似然比检验、Hosmer-Lemeshow检验等。

In this paper, the statistical characteristics of one plane and one helicopter's RCS dynamic measurement data are studied by using the χ^2 distributing, log-normal distribution and Rayleigh distributing model, along with the Kolmogorov fit test to goodness, the fitting results in some notableness level are acquired by using the three models for different aspect angles for two targets, and the degree of freedom distribution of χ^2 model in all aspect angles is obtained for two targets' RCS data.

文中以某歼击机和直升机为对象,应用χ^2分布、对数正态分布和瑞利分布模型,以及Kolmogorov拟合优度检验方法,研究其RCS动态测量数据的统计分布特征,得到了在一定显著性水平下,两种目标在不同视向角下对三种模型的拟合效果,同时得到应用χ^2分布拟合时模型半自由度随视向角的分布情况。

The results will provide a certain theoretical basis for nonparametric likelihood ratio goodness of fit test with estimated parameters.

所得结论可以为进一步讨论复合零假设下非参似然比拟合优度检验提供理论基础。关键词加权经验过程,估计参数,拟合优度检验

Robust goodness-of-fit test of AP model based on L-1 norm fitting[J].

基于L-1范数拟合的AR模型的稳健的拟合优度检验[J]。

Robust goodness-of-fit test of AR model based on L-1 norm fitting .

基于L-1范数拟合的AR模型的稳健的拟合优度检验

the article examines the characteristics of foreign exchange returns distribution,coupling with kinds of foreign exchange datas, figures out parameters of model by using variance gamma model.the empirically results ofkolmogorov-smirnov test and goodness of fit chi-square test shows that v.g.

本文运用方差gamma模型对外汇收益分布特征进行对比拟合分析,并结合几种被选汇率数据对模型参数进行估计。ks检验和卡方拟合优度检验的实证结果表明v.g。

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