多元分析

NMath Stats contains a data table class with functions for computing descriptive statistics, such as mean, variance, standard deviation, percentile, median, quartiles, geometric mean, harmonic mean, RMS, kurtosis, skewness, and many more; PDF, CDF, inverse CDF, and random variable moments for a variety of probability distributions, including normal, Poisson, chi-square, gamma, beta, Student's t, F, binomial, and negative binomial; Combinatorial functions, such as factorial, log factorial, binomial coefficient, and log binomial; Multiple linear regression; Basic hypothesis tests, such as z-test, t-test, and F-test, with calculation of p-values, critical values, and confidence intervals; One-way and two-way analysis of variance and analysis of variance with repeated measures; Multivariate statistical analyses, including principal component analysis and hierarchical cluster analysis.

nmath统计包含一个数据表的阶层与职能计算描述性统计，如平均，方差，标准差，百分位，中位数， 25 ％，几何平均数，调和的意思是，有效值，峭度，偏度，还有更多的； PDF格式，民防部队，逆民防部队，并随机变量矩的各种概率分布，包括正常，泊松，卡方检定，伽玛，测试版，学生的吨，男，二项式，并负二项分布；组合的功能，例如阶乘，日志阶乘，二项式系数，并登入二项式；多元线性回归；基本假设测试，如的Z测试， t检验， F检验，计算p值，临界值，和置信区间；之一，双向和双方法方差分析和方差分析与反复的措施；多元统计分析，包括主成分分析和聚类分析。

Based on the financial data of 160 companies in both the stock market of Shanghai and Shenzhen between 2003 and 2005, we first use principle component analysis to eliminate the effect of multiple collinearity while at the same time remain as much information as possible.

本文主要运用主成分分析、多元判别分析和 Logistic 回归分析这三种多元统计分析方法，研究了结合了主成分分析的多元判别模型和Logistic 回归模型在违约概率预测上的应用。

Part four is a systematically analyses of the investigations conclusion and interprets the theories of multicultural curriculum discriminatingly in the west, put forward a conception of multicultural curriculum development in Yan Yuan County. It consists of three parts, the one are the modes of multicultural curriculum, the two are design of multicultural curriculum, the other are strategies of multicultural curriculum resources exploration.

第四部分：基于调查结果的系统分析和对西方多元文化课程开发理论的阐释与批判，提出了盐源县多元文化课程开发的构想，由三部分构成：一是多元文化课程的开发模式；二是多元文化课程的设计；三是多元文化课程资源的开发策略。

It is interpreted that the correlation structure of the allelic polymorphism data contains null correlations introduced by "closure" and the statistical distribution of the data is not normal because of its constant row sum,which resulted in great difficulties in analyzing the data with traditional multiple linear statistical methods such as principal component analysis,factor analysis,cluster analysis and canonical correlation analysis.

长期以来，对于多维基因多态性数据的多元统计分析，如计算遗传距离时所用的聚类分析、分析群体遗传结构时所用的主成分分析、因子分析和典型相关分析等，一直应用为无约束条件数据而设计的经典多元线性分析方法，并没有注意基因多态性数据的"闭合效应"所带来的问题。

There are several methods can be applied in symptom complex study: Principal component analysis, Factor analysis, Cluster analysis, Regression analysis, and Correspondence analysis, etc. In this article, the author introduces the application of multivariate statistical analysis in TCM symptom complex normalization research in the following four aspects: establishing the basic symptom, filtering optimization index, settling the weight of the index, and setting up the mathematical model.

本文从确立基本证型、筛选优化指标、确立优化指标的权重、建立证候数学模型等4个环节上介绍了多元统计分析在中医证候诊断标准领域的应用，并指出：多元统计分析是研究多因素和多指标问题的统计分析方法，证候诊断学正是研究疾病的多种证型与多种症状之间的关系问题，因此，可以将多元统计分析应用于中医证候的规范化研究中。

This paper has done a deeply research on the evaluative method, which focus on maintaining and ensuring the camion. After deeply analyzing the maintain theory of army equipment and the stratagem 's characteristic and combining the current systems engineering evaluating theories and methods, it has analyzed and solved all limitations that coming forth when a single model is used to evaluate the maintain capacity. After analyzing and ameliorating the judgment of AHP's coherence, the calculation of the expert power value and the optimizing of the more-extreme judging model, a new calculation method, the multidimensional complex calculation theory, is presented, which much fits for the evaluative calculation of the camion. The new theory's feasibility and the evaluation's reliability have been proved in theory in this paper. This paper also analyses the principle and the program, which is about building a camion evaluating system. According to the multidimensional complex calculation theory, an evaluative model has been built. Applying the levels analytical method, this paper fixes on the calculation of every target's power, brings the optimization allot precept of macro spatial resource, optimizes the resource of the maintainability of theater of operations' vehicle, which offers a theory foundation for optimizing of the resource space. The research not only brings out a uniform standard for the evaluating of the maintain ability of the camion, but also presents a theory foundation and method for perfecting the camion maintain system.

本文对军用车辆维修保障能力评估的方法论进行了深入研究，在理论上通过对军事装备维修理论及战略特性的深入剖析，结合现有系统工程评估理论、评估方法的特点，分析解决了应用单一模型评估装备维修能力问题的各种缺陷，就AHP法判断矩阵一致性判定，群策专家权重值的确认及多元评判模型的优化进行了研究和改进，形成了适应军事车辆维修保障能力评估应用的新算法--多元复合算法理论，对这一创新评价理论的科学性及评估可靠性进行了理论证明和算法应用；研究分析了建立军用汽车维修保障能力评估指标体系的原则和程序，并按照多元复合算法的理论，建立了车辆维修保障能力评估模型；应用层次分析法的原理，明确了各指标权重的算法，提出了宏观空间维修资源优化分配方案，优化了战区车辆装备维修能力资源空间，为某一具体车辆装备维修能力形成所需维修资源空间的优化提供了理论依据；本文的研究既为军用车辆装备维修保障能力评估提供了统一的衡量标准，也为军事装备维修保障系统的进一步完善提供了理论依据及方法手段。

CD was added into running buffer in above electrophoresis system, and the separation efficiency of polycarboxylic acids was improved further by the supramolecular interaction. Based on that, the method for separation and determination of several di- and tricarboxylic acids, including oxalic, malic, tartaric and citric acids, found in fruit juices was developed, which supplied a fast, convenient and sensitive method for the food analysis, the quality control of foods and various drinks.

果汁中多元有机酸的毛细管区带电泳/Cu电极安培检测在上述分析体系的电泳介质中添加β-CD，利用CPB与β-CD的协同超分子作用，进一步提高了多元有机酸的分离效率，成功实现了水果中四种常见多元有机酸草酸、柠檬酸、苹果酸、酒石酸的基线分离，建立了几种果汁中上述有机酸毛细管区带电泳/Cu电极安培检测定量测定方法，为食品分析、食品饮料质量控制以至辨别酒类商品真伪等提供了一种方便、快速、灵敏度高的分析方法。

The genetic divergence among 41 upland cotton genotypes was quantitatively studied by using principal component analysis.

本文应用多元分析法定量分析了41份陆地棉亲本之间的遗传差异。

Learning disorders ; Psychosomatic medicine ; Health education ; Multivariate analysis ; Student

学习障碍；心身医学；多元分析；卫生教育；学生

Keywords Learning disorders;Psychosomatic medicine;Health education;Multivariate analysis;Student

学习障碍；心身医学；多元分析；卫生教育；学生

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐