中英
1
variance-covariance matrix中文是什么意思
发音:
- 中文翻译
- 造句
- 变量-协变量矩阵
- 方差-协方差矩阵
- variance n. 1.变化，变动，变更；变度，变量；【统计】(平)方 ...
- covariance n. 【统计学】协方差，协变性；共离散。
- matrix n. (pl. matrices 或matrixes) ...
- nonscalar variance-covariance matrix 非纯量方差-协方差矩阵
- sample variance-covariance matrix 样本方差协方差矩阵
- variance covariance matrix 方差-协方差矩阵
- variance covariance 变异数协方差
- covariance matrix 历方差矩阵, 协变矩阵; 协方差矩阵; 协方差距阵; 协方差阵
- analysis of variance and covariance 变方与变积分析
- variance-covariance propagation law 协方差传播律
- variance matrix 方差矩阵
- asymptotic covariance matrix 渐近协方差矩阵
- conditional covariance matrix 条件协方差矩阵
- covariance matrix estimation 协方差矩阵估计
- diagonal covariance matrix 对角协方差矩阵
- factor covariance matrix 因素协方差矩阵
- finite covariance matrix 有限协方差矩阵
- image covariance matrix 图像协方差矩阵; 图象协方差矩阵
- nonscalar covariance matrix 非纯量协方差矩阵
- nonscalar disturbance covariance matrix 非纯量扰动协方差矩阵
- positive definite covariance matrix 正定协方差矩阵
- sample covariance matrix 样本协方差矩阵; 样本协方差阵
- scalar covariance matrix 纯量协方差矩阵
- within-group covariance matrix 组内协方差阵
- pooled within-groups covariance matrix 合并的组内协方差矩阵
- All these estimates are feasible unbiased estimates . we use the quotient of the determinant of the variance - covariance matrix of the feasible unbiased estimates , that is , a kind of relative efficency to compare these esti - mates . the results have instructive significance for practice
我们应用这些估计的协方差阵的行列式之商，即一种相对效率比较了这些估计的优劣，所得结果对实际应用具有一定指导意义。 - Panel data model is an important linear model in economics , finance , biology , medicines and other fields . in recent twenty years , statistical in - ferrence about this model attracts many statisticians . in this paper , we first generalize the latest development of parameter estimation in this field , then focus on parameter estimation in the panel model with individual effect and time effect . many articles researched the parameter estimation of the regression coefficents in the case that both individual effect and time effect are random , but in some conditions , it is more reasonable if we suppose either of them is fixed . this paper is based on this hypothesis to research the estimations of the coefficents . the variance - covariance matrix still include parameter of variance in this condition , so our purpose is to look for feasible estimations
Panel数据模型是一类具有重要应用的线性统计模型，它在经济、金融、生物、医学等领域都有广泛的应用。近二十余年来，关于这种模型的统计推断吸引了很多统计学家。本文首先概述了这一领域参数估计方面的最新发展，然后集中讨论了既含有个体效应，又有时间效应的panel数据模型的参数估计。 - Discusses the characteristic values on individual stock risk with the standard deviation , variance ( 2 ) , standard deviation coefficient ( cv ) and coefficient measurement , construct the individual on stock ' s statistics index system on investment risk . 2 . discuss the characteristic of standard deviation , variance , variance - covariance matrix to measure the investment risk of stock portfolio
第二章“证券投资风险的度量”分为三个小节： 1 、讨论单个证券风险用标准差( ) 、方差( ~ 2 ) 、变差系数( cv )以及系数度量，构造了单个证券的投资风险统计指标体系； 2 、讨论了用标准差和方差、方差?协方差矩阵、方差?协方差矩阵的特征值来度量组合证券的投资风险； 3 、计算了衡量证券组合系统性风险的系数值，并分析了系数的含义和预测能力的可靠性。
- variance-covariance matrixとは意味：分散共分散行列
- 推荐英语阅读
variance-covariance matrix的中文翻译，variance-covariance matrix是什么意思，怎么用汉语翻译variance-covariance matrix，variance-covariance matrix的中文意思，variance-covariance matrix的中文，variance-covariance matrix in Chinese，variance-covariance matrix的中文，variance-covariance matrix怎么读，发音，例句，用法和解释由查查在线词典提供，版权所有违者必究。
Last modified time:Sun, 10 Aug 2025 00:29:56 GMT
关于我们
