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statistical analysis method中文是什么意思

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  • The second part : in this part author used the statistical analysis method of the appraisal analysis and the dynamic analysis and analyzed northwest area population distribution condition and characteristic : ( 1 ) population is a little , increase speed is
    从而提出西北地区人口分布与资源环境相协调对该地区全面建设小康社会具有重要的战略意义。第二部分:这一部分作者用评价分析和动态分析的统计分析方法,系统分
  • Then the paper investigated the regularity of different oil indices using time series statistical analysis method , which suggested that there are some regular components in it , including long - term secular trend , seasonal component and long - term cyclical component . the irregular component also plays an important part in it , mainly including the policy of opec , war , all kinds of international convention for the prevention of pollution from tankers and so on . and then a study of simulation and forecasting performance of arima time series model was conducted to crude oil indices , evidence shows that arima model performs better , especially for short - term forecasting
    在此基础上,本文以时间序列分析作为基础研究手段,以德国海运费率指数公布的1980年1月至1999年12月的四类油运费率指数为研究对象,分析了四类油运费率指数的长期变化趋势、季节变化规律、长期周期循环变化规律和不规则变化规律,并应用arima时间序列模型对160000dwt以上的原油运费率指数进行了短期预测,取得了较好的预测效果。
  • Firstly , briefly stated the developing history and current situation of reliability engineering , introduce the reliability test method and developing trends . moreover , the statistical analysis method and existing problems , electrical connectors reliability research ' s current situation and existing problems , and reliability test plan and existing problems was presentation
    首先,介绍了国内外可靠性研究的发展历史和现状,对可靠性试验方法和发展趋势,可靠性统计分析方法和存在的问题,航天电连接器可靠性研究的现状和存在的问题,可靠性试验方案设计中存在的问题进行了回顾和评述。
  • Firstly , briefly stated the reliability research developing history and current situation at home and abroad , the reliability test method and developing trends , the statistical analysis method and existing problems , and electrical connectors reliability research " s current situation and existing problems
    首先,介绍了国内外可靠性研究的发展历史和现状;对可靠性试验方法和发展趋势,可靠性统计分析方法和存在的问题,以及航天电连接器可靠性研究的现状和存在的问题进行了回顾和评述。
  • This has hindered greatly the economy development of chongqing . under this reality backgroud , this article uses statistical analysis method to evaluate economy development standard of various districts , and from the angle of fixed quantity , the article has compared and analysed the economic development standard of 40 prefectures and counties in chongqing , discussed and studied the reasons that had caused the difference among the prefectures and counties since it was directly under the jurisdiction in 1997 , forecast roughly the economic difference trend , and has put forward the corresponding policy measure . this paper is divided into four parts : part one : the backgroud of the research and theory matting . lt includes introduction and chapter one
    在这样的现实背景下,研究重庆市的区域经济差异对重庆的经济发展具有重要的现实意义和理论价值。本文以重庆40个区县为研究对象,利用多元统计分析方法综合评价地区经济发展水平,将绝对差异和相对差异结合起来,从定量的角度对重庆40个区县的经济发展水平做了比较和分析,同时就97年重庆直辖以来其各区县间经济差异产生的原因做了一定程度的探讨和研究,对经济差异未来的发展趋势也做了初步的定性预测,并针对产生原因提出了一些对策措施,以期对政府如何调控重庆区域经济差异有所借鉴。
  • The thesis , using the positive analysis method and the statistical analysis method , selects some samples in quoted companies of our country and some analysis index to establish the linear discriminant model and the logistic regression model for the quoted companies of our country . the establishment of two models is based on the financial data of the samples . the analysis result indicates that the logistic regression model has the higher accuracy than the linear discriminant model
    两种模型的回代结果显示:在企业发生财务危机前一年,线性判别模型和逻辑回归法模型的回代准确率分别为90 . 00和96 . 67 ;在企业发生财务危机前两年,线性判别模型和逻辑回归法模型的回代准确率分别为78 . 30和80 . 00 。
  • Aiming at the problems that there are in the fuse universal test of the conventional weapons test , this paper puts forward using quality control method and statistical analysis method to get the optimum plan for fuse universal test , meanwhile evaluates the reliability
    本论文针对常规兵器试验中引信通用性试验存在的一些问题,提出用线外质量管理方法?稳健试验法、极差分析和方差分析等统计分析方法,对引信通用性试验方案进行优化设计,同时对引信的通用性进行了可靠性评定。
  • First , briefly stated the reliability research developing history and current situation at home and abroad , the reliability test method and developing trends , then statistical analysis method and existing problems , and electrical connector reliability research ' s current situation and existing problems , i second , through analyzing the failure mechanism of electrical connector , and combining with the theory of probability and statistics , set up a reliability statistical model of electrical connector affected upon vibration stress , which is the anti - power law - weibull model , laid a foundation for working out electrical connector reliability test plans and treating electrical connector test data
    首先,对国内外可靠性研究的发展历史和现状,可靠性试验的方法和发展趋势,可靠性统计分析方法和存在的问题,以及航天电连接器可靠性研究的现状和存在的问题进行了回顾和评述。其次,通过对电连接器进行失效机理的研究分析,结合概率统计理论,建立了电连接器在振动应力作用下的可靠性统计模型,即逆幂律?威布尔模型,为电连接器可靠性试验方案的制定和试验数据的统计分析奠定了基础。
  • Against the limitations of principal component analysis ( one of main multivariate statistical analysis methods ) in quality assessment for environment system , this paper builds the multi - layer weighted pca model by making some refinements to traditional method based on synthesizing the merits of subjective and objective weighting methods
    摘要针对多元统计中主成分分析方法在复杂环境系统质量综合评价应用中的局限性,在对传统方法进行一系列改进的基础上,建立了主、客观指标赋权方法优点相结合的环境质量综合评价分层构权pca模型,并基于该模型方法给出47个中国国家环境保护重点城市的污染与环保现状的评价实例。
  • Due to high flight delay / cancellation rate and fault rate of domestic civil aircrafts , the authors employed statistical analysis method and trend prediction technology , presented system function structure and monitoring procedure , and standardize information collection and processing , finally developed a set of new aircraft reliability monitoring system which accord with the situation of china
    摘要针对国内民用飞机航班延误取消率、故障率高等问题,采用统计分析方法与趋势预测技术,给出了系统的功能结构和监控流程,并对系统信息的采集与处理进行了规范,最后开发了一套全新的、符合中国国情的飞机可靠性监控系统。
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Last modified time:Tue, 12 Aug 2025 00:29:56 GMT

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