统计显著性:一个被误读的P值——基于美国统计学会的声明

美国统计学会"关于统计显著性与P值"的官方声明发布之后,再次引发国内外研究学者对P值的广泛关注。在介绍国内统计教材中假设检验的基本内容和步骤的基础上,以"硬币投掷"与"背影识人"为例直观性解释P值、统计显著性与统计功效等相关概念,并引用心理学统计经典调查案例分析P值被误读的原因。同时,基于美国统计学会的声明,给出正确使用P值的建议。     

Discriminant coordinates analysis for multivariate functional data

Abstract

One of the basic statistical methods of dimensionality reduction is analysis of discriminant coordinates given by Fisher (1936 Fisher, R. A. 1936. The use of multiple measurements in taxonomic problem. Annals of Eugenics 7 (2):179–88. doi:10.1111/j.1469-1809.1936.tb02137.x.[Crossref] , [Google Scholar]) and Rao (1948). The space of discriminant coordinates is a space convenient for presenting multidimensional data originating from multiple groups and for the use of various classification methods (methods of discriminant analysis). In the present paper, we adapt the classical discriminant coordinates analysis to multivariate functional data. The theory has been applied to analysis of textural properties of apples of six varieties, measured over a period of 180?days, stored in two types of refrigeration chamber.     

Estimation and simulation of conditional hazard function in the quasi-associated framework when the observations are linked via a functional single-index structure

We consider the estimation of the conditional hazard function of a scalar response variable Y given a Hilbertian random variable X when the observations are linked via a single-index structure in the quasi-associated framework. We establish the pointwise almost complete convergence and the uniform almost complete convergence (with the rate) of the estimate of this model. A simulation is given to illustrate the good behavior in the practice of our methodology.     

习近平新时代体育外交的实践探析

运用文献资料法和逻辑分析法等研究方法,以构建人类命运共同体为切入视角,对习近平新时代体育外交思想进行深入分析。研究认为,习近平新时代体育外交主要内容包括:赛事外交是主流;足球外交成亮点;多边合作是关键。习近平新时代体育外交思想是中国外交思想的重要组成部分之一,是对中共历代领导人体育外交思想的继承和发展,也是建设新时代体育强国的内在要求。习近平新时代体育外交思想内涵丰富且意蕴深远,不仅展现了我国新时代外交多元化发展的一面,也促进了中国对外沟通、交流及合作,具有十分重要的意义。     

数量体现述式的系统功能语法研究

系统功能语言学中的系统语法是体现性语法，语言被视为意义资源系统，而非封闭自足的规则系统。系统语法和阶与范畴语法的一个变化就是体现述式的引入，体现述式是对层际或层内体现关系的一种建模由操作项和操作符构成。系统功能语法主要识别了插入、排序、重合、扩展、预选等五种体现述式，本文基于系统功能语法对数量在体现过程中的体现述式进行跨语言的探索研究。      

关于职业学校实施品牌战略的思考

创建学校品牌有助于提高生源质量,提高教学质量,提升职业学校形象。     

论坚持“以德为先”选用干部

我们党选用干部标准的思想经历了从毛泽东提出的＂德才兼备＂到胡锦涛明确提出的＂德才兼备、以德为先＂的历史的、理论的发展演变过程。从宏观上和战略上看,坚持＂以德为先＂选用干部,在理论层面和现实需求层面上都具有重大的价值意义。要使＂以德为先＂用人标准不致于流于形式,就必须健全完善与时俱进的党员干部＂德＂之衡量标准。     

柳亚子与新南社

南社社友虽然在辛亥革命中发挥了巨大的积极作用,但自民国成立后便开始消沉失落。新文化运动中,为了重振南社昔日的雄风,迎上革命的新潮,柳亚子与叶楚伧等共同发起成立了新南社,制定章程,选举柳亚子为社长。国民党改组后由于柳亚子忙于党内斗争以及国民党右派的反对,新南社只存在一年即告停顿,却在宣传新三民主义和动员群众投身国民革命方面发挥了积极作用。     

The estimation of treatment effect for the censored bivariate data under the univariate censoring

This paper establishes a nonparametric estimator for the treatment effect on censored bivariate data under unvariate censoring. This proposed estimator is based on the one from Lin and Ying(1993)'s nonparametric bivariate survival function estimator, which is itself a generalized version of Park and Park(1995)' quantile estimator. A Bahadur type representation of quantile functions were obtained from the marginal survival distribution estimator of Lin and Ying' model. The asymptotic property of this estimator is shown below and the simulation studies are also given     

The measurement of capital utilisation rates

A strategy using spline function interpolation is developed f o r estimating capital utilisation rates . Cobb-Douglas, CES and translog functional forms are used in estimation. Tests for functional forms are conducted leading t o t h e s e l e c t i o n of the Cobb-Douglas form. Quarterly series of estimated utilisation rates and excess capacity measures are presented.