多元回归分析

In this thesis, working condition that influence the two evaluating indicators has been analyzed on basis of experiment study. Statistics has been used to deal with the experiment data, and work out a expressions that can count the real time efficiency of total heat exchanger from temperature difference and absolute humidity difference of inside and outside air and working air volume.

本文采用实验的方法，对影响全热交换器的两个效率的工况因素进行了分析，并采用多元线性回归的方法对实验数据进行处理，得到一个通过室内外空气间的温度差，绝对湿度差和工作风量来计算全热交换器的实时工作效率的经验公式。

With case-conetol metbod and statistic method 0f single factor and multi-variate stepwise fegression analysis, the RF of CHD and CAS bave been analysed and similarity and difference of botb diseases have been discussed. THE results revealed that kidney deficiency, heart deficiency, Liver deficiency, Lung deficiency, qi deficiency, senility index, bypertension, chronic bronchitis, diabetes, typerlipemia, obesity are principal RF of CHD.

调查内容涉及129个中西医因索，应用病例一对照的研究方法，以单因素分析，多元逐步回归对CAD和CAS的中西医易患因素进行比较分析，并探讨了二种疾病易患因素的异同点，结果表明：CHD主要易患因素是肾虚、心虚、肝虚、肺虚、气虚、衰老指数、市血压、慢支、糖尿病、高脂血症、肥胖。

This article makes a research into analysis of and control over influential factors of single disease's hospitalization expenses in polyclinic. It chooses a level-3 and grade-A army hospital and a certain county's level-2 and grade-A as the sample to compare their structures and differences of hospitalization expenses of 2681 patients, with some being sick of gallstone accompanying with chronic cholecystitis treated by gallbladder- removed with laparoscopy and others treated by hysterotomy, particularly to analyze the influential factors of single disease's hospitalization expenses.

本文围绕综合医院单病种住院费用影响因素与控制开展研究，采用文献调研、专家访谈、数学统计等方法，选择某军队三级甲等医院与某地方区县二级甲等医院，分别对胆囊结石伴慢性胆囊炎与剖宫产共2681例患者的住院费用构成及差异进行了分析比较，重点对A院单病种住院费用的影响因素进行单因素分析，在此基础上建立了住院费用影响因素的多元逐步回归模型，探讨各因素对住院费用的影响及控制对策。

On the basis of pollen analysis of surface sample in North China, polynomial function analysis method was applied to establish pollen climate response surface of Pinus, Betula, Quercus, Artemisia, Chenopodiaceae, Compositae, Picea, Ephedra, Gramineae in North China, therefore an easy and applicable method for reconstructing palaeoclimate and palaeoenvironment with data of fossil pollen was founded; Multi-analysis method was applied to analyse the principal elements of surface sample pollen in central Inner Mongolia Steppe, the assemblages of surface sample pollen in steppe area and its relationship with vegetation type were discussed with helps from spore-pollen analysis of a peat section in Chasuqi, Inner Mongolia and 〓C chronometer, fossil pollen data were obtained with high resolution on the peat section in Chasuqi. Vegetation succession and environmental changes since Holocene at resolution of 70 years were primarily reconstructed in south Mount Daqingshan and Plain Tumete. The changes in the area were copmared with those in the neighbouring areas during the same period. It was found that Holocene environmental change had undergone the following stages: cold-arid, temperate-wet, warm-wet, temperate-arid and cold-arid, and the climatical optimum period occurred in 5000-4100 aB.

本文在对中国北方表土花粉研究的基础上，采用多项式函数回归方法建造了中国北方松属、桦属、栎属、蒿属、藜科、菊科、云杉属、麻黄属、禾本科等的花粉——气候趋势面，从而为利用化石花粉资料直接恢复古气候、古环境提供了一种方便易行的方法；采用多元分析方法对内蒙古中部草原区表土花粉进行了主成分分析，探讨了草原区表土花粉组合的规律及与植被类型的关系；本文还应用孢粉分析方法，结合〓C测年技术，通过内蒙古中部察素齐泥炭剖面高分辨率的化石花粉数据，初步恢复了大青山山地南部及土默特平原地区分辨率为70年的全新世以来植被演替和环境变迁的状况，并与邻近地区的全新世古气候、古环境进行了对比研究，研究发现，本区域全新世古环境的变迁序列基本上可以与周围地区及华北地区进行对比，其环境变迁经历了凉干～温湿～暖湿～温干～凉干的变化，且气候最适宜期出现在5000～4100aB.P。

Proceeding from the above purpose and thinking, the following of research contents is launched that: Chapter one is a part of the prolegomena, and mainly introduce the purpose, meaning, research background, documents survey in which the tax compliance discrimination models concerned. On the basis of the investigation of the critical to taxation, Chapter two reveals the index system, and uses the discriminating analytical method to judge taxpayers" credit, and embodies its standard and methods in judgments. On the disvovery of the investigating taxpayers" microeconomics behavior, Chapter three uses the econometrical modeling methods and data mining technology, establishes Logistic regression model, calculates taxpayer credit measure and gives the empirical analysis; Chapter four gives a work methods and suggestions in practical application of identifying models; It is a conclusion of this paper, which reaffirms the main achievements and viewpoints of this paper.

从以上目的和思路出发，本文研究内容如下方式展开：论文第一章为绪论部分，主要介绍纳税人诚信识别模型研究的目的、意义、研究背景、文献综述以及全文框架；第二章在纳税评估问卷调查基础上，提出纳税评估指标体系，并应用多元统计的判别分析方法来给出评判纳税人诚信，并具体给出其判断的标准与方法；第三章在考察纳税人微观行为基础上采用计量经济建模方法和数据挖掘技术，建立定量能测算纳税人诚信水平的Logistic回归模型，并作实证分析：第四章对比分析纳税评估模型实证研究结果，并就模型在实际应用中的工作方法、建议及进一步的研究方向展开讨论；最后为本文的结论，在该部分将再次重申本文研究的主要成果和观点。

In this paper, we studied community stability, forage quality and yield character about the mixed-sowing of Medicago sativa and Bromus intermis from 2003 to 2004 and using Factor Analysis, Principal Components Analysis methods and getting the yield forecast model with linear regress multianalysis method. The study provided theoretical foundation for establishing high yield and good quality artifical pasture.

本试验以紫花苜蓿与无芒雀麦为供试材料，于 2003~2004 年对 6 个不同混播处理的群落稳定性、牧草产量及质量性状进行了系统的研究，并运用因子分析法、主成分分析法和多元线性回归的方法，建立了产量预测预报模型，结合经济效益评价和提高土壤肥力的因素，确立最佳混播处理。

In this thesis , I use relevant theories of regional economics,system engineering methord ,and industry"s economics, and adopt research methords of gange analysis , facts analysis and comparison analysis to make objective and just appraisal on the actural conditions of each country regional economic development of Hubei province on the basis of setting up the comprehensive appraising system of country economic strength ; and I divide all coutry of Hubei into three classes more developed country , the undeveloped country and poor country and analyse the reasons for forming three kinds of different development levels, then I set up plural linear regression model to announce the role of every influence factor in Hubei country economic development by regarding economic development level as depentent variable and regarding the seven influence factors(stock of the capital .industrial structure,government"s efficiency ,economic vigor ,technological innovation ability,agricultu ral innovationability, agr icultural resource and export-oriented degree of economy )as independent variable.

本文运用区域经济学、计量经济学、产业经济学的相关理论，采用规范分析、实证分析、比较分析相结合的研究方法，在建立县域经济综合实力评价体系的基础上，对湖北省各个县域经济发展的实际情况作出了客观公正的评价，并把湖北各县域分为三大类：较发达县、欠发达县和贫困县，且对形成三类县域不同发展水平的原因进行了分析。然后以经济发展水平为因变量，以资本存量、产业结构、政府效率、经济活力、技术创新能力、农业资源禀赋和经济外向度等七个方面的影响因素为自变量，建立多元线性回归模型，揭示各影响因素在湖北县域经济发展中的作用。

PLSR is a new multivariate statistical analysis method which combines the modally predicting analysis and non-modally connotative analysis organically.

偏最小二乘回归这一新型的多元统计数据分析方法，可以将建模类型的预测分析方法与非模型式的数据内涵分析方法有机结合起来。

This paper presents the optimum period of dependent relalionship in stock indexes based on the principle of threshold autogress method,using computers to make polybasic analysis of stock indexes and with the help of data processing so as to provide a scientific basis for the anal-ysis and prediction of the stock -market situation.

根据门限自回归方法的基本原理，利用计算机对股票指数进行多元分析，通过数据处理，找出了股票指数之间最佳依赖关系周期，为股市形势分析及预测提供出较科学的依据。

The boundary of analytical model and statistical model is clearly divided in this performance model, and evaluation accuracy is improved. Secondly, based on embedded SRAM performance hybrid model, this article adopts bionics algorithm-ant algorithm to optimize hierarchical embedded SRAM structure. This method which adjusts memory system structure improves memory system performance. Finally, considering the factors such as memory cell area, power, delay and reliability, this article establishes static 6-T memory cell area, power, delay and static noise margin equations, analyzes 6-T memory cell device dimension constraints under "read upset" and "write upset", then proposes a method to enhance embedded SRAM performance by optimizing 6-T memory cell size. In order to realize embedded SRAM design and verify proposed optimization methods, this article takes the Garfield202 system chip as the platform, which embeds A720T processor and 20KB Scratch-Pad memory.

首先针对嵌入式SRAM结构，采用多元线性回归方法分析SRAM宏单元性能指标，采用解析方法分析控制电路延时，结合以上这两种方法建立嵌入式SRAM性能混合模型，该模型清晰划分两种建模方法的各自适用范围，提高了模型精度；其次以该混合模型为基础建立存储体性能目标函数，采用仿生优化算法—蚂蚁算法优化嵌入式SRAM结构，使之达到最优设计；最后综合考虑面积、功耗、速度以及可靠性等因素，建立静态6-T存储单元面积、功耗、延时以及静态噪声容限方程，分析了&读破坏&和&写破坏&的晶体管尺寸约束，优化了6-T存储单元尺寸，提高了嵌入式SRAM性能。

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