variance-covariance matrix中文是什么意思

發(fā)音:

中文翻譯
造句

變量-協(xié)變量矩陣
方差-協(xié)方差矩陣

variance n. 1.變化，變動，變更；變度，變量；【統(tǒng)計】(平)方 ...
covariance n. 【統(tǒng)計學】協(xié)方差，協(xié)變性；共離散。
matrix n. (pl. matrices 或matrixes) ...
nonscalar variance-covariance matrix 非純量方差-協(xié)方差矩陣
sample variance-covariance matrix 樣本方差協(xié)方差矩陣
variance covariance matrix 方差-協(xié)方差矩陣
variance covariance 變異數(shù)協(xié)方差
covariance matrix 歷方差矩陣, 協(xié)變矩陣; 協(xié)方差矩陣; 協(xié)方差距陣; 協(xié)方差陣
analysis of variance and covariance 變方與變積分析
variance-covariance propagation law 協(xié)方差傳播律
variance matrix 方差矩陣
asymptotic covariance matrix 漸近協(xié)方差矩陣
conditional covariance matrix 條件協(xié)方差矩陣
covariance matrix estimation 協(xié)方差矩陣估計
diagonal covariance matrix 對角協(xié)方差矩陣
factor covariance matrix 因素協(xié)方差矩陣
finite covariance matrix 有限協(xié)方差矩陣
image covariance matrix 圖像協(xié)方差矩陣; 圖象協(xié)方差矩陣
nonscalar covariance matrix 非純量協(xié)方差矩陣
nonscalar disturbance covariance matrix 非純量擾動協(xié)方差矩陣
positive definite covariance matrix 正定協(xié)方差矩陣
sample covariance matrix 樣本協(xié)方差矩陣; 樣本協(xié)方差陣
scalar covariance matrix 純量協(xié)方差矩陣
within-group covariance matrix 組內(nèi)協(xié)方差陣
pooled within-groups covariance matrix 合并的組內(nèi)協(xié)方差矩陣

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例句與用法

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
我們應(yīng)用這些估計的協(xié)方差陣的行列式之商，即一種相對效率比較了這些估計的優(yōu)劣，所得結(jié)果對實際應(yīng)用具有一定指導意義。
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數(shù)據(jù)模型是一類具有重要應(yīng)用的線性統(tǒng)計模型，它在經(jīng)濟、金融、生物、醫(yī)學等領(lǐng)域都有廣泛的應(yīng)用。近二十余年來，關(guān)于這種模型的統(tǒng)計推斷吸引了很多統(tǒng)計學家。本文首先概述了這一領(lǐng)域參數(shù)估計方面的最新發(fā)展，然后集中討論了既含有個體效應(yīng)，又有時間效應(yīng)的panel數(shù)據(jù)模型的參數(shù)估計。
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“證券投資風險的度量”分為三個小節(jié)： 1 、討論單個證券風險用標準差( ) 、方差( ~ 2 ) 、變差系數(shù)( cv )以及系數(shù)度量，構(gòu)造了單個證券的投資風險統(tǒng)計指標體系； 2 、討論了用標準差和方差、方差?協(xié)方差矩陣、方差?協(xié)方差矩陣的特征值來度量組合證券的投資風險； 3 、計算了衡量證券組合系統(tǒng)性風險的系數(shù)值，并分析了系數(shù)的含義和預測能力的可靠性。

其他語種釋義

variance-covariance matrixとは意味：分散共分散行列

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