- variance-covariance matrix
- мат. матрица дисперсий и ковариаций
Большой англо-русский и русско-английский словарь. 2001.
variance-covariance matrix
Смотреть что такое "variance-covariance matrix" в других словарях:
Covariance matrix — A bivariate Gaussian probability density function centered at (0,0), with covariance matrix [ 1.00, .50 ; .50, 1.00 ] … Wikipedia
Variance — In probability theory and statistics, the variance of a random variable, probability distribution, or sample is one measure of statistical dispersion, averaging the squared distance of its possible values from the expected value (mean). Whereas… … Wikipedia
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Matrix (mathematics) — Specific elements of a matrix are often denoted by a variable with two subscripts. For instance, a2,1 represents the element at the second row and first column of a matrix A. In mathematics, a matrix (plural matrices, or less commonly matrixes)… … Wikipedia
Matrix normal distribution — parameters: mean row covariance column covariance. Parameters are matrices (all of them). support: is a matrix … Wikipedia
Covariance and contravariance of vectors — For other uses of covariant or contravariant , see covariance and contravariance. In multilinear algebra and tensor analysis, covariance and contravariance describe how the quantitative description of certain geometric or physical entities… … Wikipedia
Estimation of covariance matrices — In statistics, sometimes the covariance matrix of a multivariate random variable is not known but has to be estimated. Estimation of covariance matrices then deals with the question of how to approximate the actual covariance matrix on the basis… … Wikipedia
Computational formula for the variance — See also: Algorithms for calculating variance In probability theory and statistics, the computational formula for the variance Var(X) of a random variable X is the formula where E(X) is the expected value of X. A closely related identity can be… … Wikipedia
Cross-covariance — In statistics, the term cross covariance is sometimes used to refer to the covariance cov(X, Y) between two random vectors X and Y, in order to distinguish that concept from the covariance of a random vector X, which is understood to be the… … Wikipedia
Multivariate analysis of variance — (MANOVA) is a generalized form of univariate analysis of variance (ANOVA). It is used when there are two or more dependent variables. It helps to answer : 1. do changes in the independent variable(s) have significant effects on the dependent … Wikipedia
Analyse de la variance — L analyse de la variance (terme souvent abrégé par le terme anglais ANOVA : ANalysis Of VAriance) est un test statistique permettant de vérifier que plusieurs échantillons sont issus d une même population. Ce test s applique lorsque l on… … Wikipédia en Français
