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统计诊断是数据分析的重要组成部分,其主要任务是检测已知观测数据在用既定模型拟合时的合理性.文章利用Kolmogorov-Smimov距离(K-S距离)对残差的经验分布函数进行了分析,进而研究了异常点的统计诊断问题;最后利用Forbes数据说明了该方法的有效性. 相似文献
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国内删失数据统计研究状况综述 总被引:2,自引:0,他引:2
研究了国内在线性回归模型、非线性回归模型、半参数回归、非参数回归、单指标回归、生存分析、时间序列分析、密度估计等领域删失数据统计研究状况。 相似文献
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伴随着1983年《统计法》的颁布,统计执法也已走过了20年的历程。可以说是一路风雨,一路歌。基层统计执法对于提高统计数据质量,提高统计工作水平,具有十分重要的意义。特别是面对当前全国第一次经济普查这样一个大型的综合国情国力调查,更需要统计执法的保驾护航。 相似文献
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众所周知,统计学在过去50年里最重大的变化来自技术的发展,更确切地说,是收集储存数据的计算机设备的飞速发展。遥感卫星、神经网络,环境监测、医疗成像等等,需要新的软件技术来处理这些庞大的数据,因此统计软件在过去几十年的发展变得越来越重要。庞大的数据集也产生了一些问题, 相似文献
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本文根据我国加入WTO后对人才的需求,分析了高等院校统计教育定位、培养方案、教材建设、人才培养等问题,对当前高等统计教育的改革提出了建议。 相似文献
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我国是个人口大国,实行计划生育是我们的一项基本国策。人口与计划生育统计在制定国策和贯彻执行国策中有着十分重要的作用。但是,随着改革开放的深入,原有的人口与计划生育统计体制与方法越来越不能适应形势的发展。如何总结以往经验,构建科学的人口与计划生育统计体... 相似文献
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The increased emphasis on evidence-based medicine creates a greater need for educating future physicians in the general domain of quantitative reasoning, probability, and statistics. Reflecting this trend, more medical schools now require applicants to have taken an undergraduate course in introductory statistics. Given the breadth of statistical applications, we should cover in that course certain essential topics that may not be covered in the more general introductory statistics course. In selecting and presenting such topics, we should bear in mind that doctors also need to communicate probabilistic concepts of risks and benefits to patients who are increasingly expected to be active participants in their own health care choices despite having no training in medicine or statistics. It is also important that interesting and relevant examples accompany the presentation, because the examples (rather than the details) are what students tend to retain years later. Here, we present a list of topics we cover in the introductory biostatistics course that may not be covered in the general introductory course. We also provide some of our favorite examples for discussing these topics. 相似文献
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Richard G Cornell 《统计学通讯:理论与方法》2013,42(5):445-448
The fields of biostatistics and epidemiology are described. Their relationship to each other and recent advances are emphasized. 相似文献
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中国国民经济核算的新发展和SNA修订的挑战 总被引:1,自引:2,他引:1
2004年经济普查之后,中国国内生产总值核算发生了若干方面变化,包括经济普查年度国内生产总值核算在资料来源、计算方法、生产范围、基本分类和某些具体问题处理方法等方面的修订,国内生产总值历史数据的修订,以及非经济普查年度国内生产总值核算方案的制定;在机构部门账户发生的若干方面变化,包括机构部门账户部门分类的细化和编制方法的修订;而1993年SNA的修订中国国民经济核算所面临的挑战,包括中央银行产出、非正规部门、政府与公共企业的交易--股权投资收益和资本注入等方面的修订对中国国民经济核算的挑战. 相似文献
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Recent Developments and Their Implications for the Future of Academic Statistical Consulting Centers
Eric A. Vance 《The American statistician》2015,69(2):127-137
I describe how developments over the past 25 years in computing, funding, personnel, purpose, and training have affected academic statistical consulting centers and discuss how these developments and trends point to a range of potential futures. At one extreme, academic statistical consulting centers fail to adapt to competition from other disciplines in an increasingly fragmented market for statistical consulting and spiral downward toward irrelevancy and extinction. At the other extreme, purpose-driven academic statistical consulting centers constantly increase their impact in a virtuous cycle, leading the way toward the profession of statistics having greater positive impact on society. I conclude with actions to take to assure a robust future and increased impact for academic statistical consulting centers. 相似文献
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David G. Kleinbaum 《The American statistician》2013,67(2):200-203
This article summarizes the author's personal history and experience with teaching short courses. Topics discussed include the rationale for the existence of short courses, the organization and various components of short courses, and some issues and problems to be considered for a short course to be successful. 相似文献