variance matrix
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variance matrix — dispersinė matrica statusas T sritis automatika atitikmenys: angl. variance matrix vok. Kovarianzmatrix, f rus. дисперсионная матрица, f pranc. matrice de variance, f … Automatikos terminų žodynas
Matrix normal distribution — parameters: mean row covariance column covariance. Parameters are matrices (all of them). support: is a matrix … 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
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
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
matrice de variance — dispersinė matrica statusas T sritis automatika atitikmenys: angl. variance matrix vok. Kovarianzmatrix, f rus. дисперсионная матрица, f pranc. matrice de variance, f … Automatikos terminų žodynas
Covariance matrix — A bivariate Gaussian probability density function centered at (0,0), with covariance matrix [ 1.00, .50 ; .50, 1.00 ] … Wikipedia
Multitrait-multimethod matrix — The multitrait multimethod (MTMM) matrix is an approach to examining Construct Validity developed by Campbell and Fiske(1959)[1]. There are six major considerations when examining a construct s validity through the MTMM matrix, which are as… … Wikipedia
Hadamard matrix — In mathematics, a Hadamard matrix is a square matrix whose entries are either +1 or −1 and whose rows are mutually orthogonal. This means that every two different rows in a Hadamard matrix represent two perpendicular vectors. Such matrices can… … 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
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
