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Справка Scilab >> Statistics > Descriptive Statistics > mvvacov (deprecated)

mvvacov (deprecated)

computes variance-covariance matrix This function is obsolete.

Calling Sequence

v=mvvacov(x)

Arguments

x

real or complex vector or matrix

Description

This function computes v, the matrix of variance-covariance of the "tableau" x (x is a numerical matrix nxp) who gives the values of p variables for n individuals: the (i,j) coefficient of v is v(i,j)=E(xi-xibar)(xj-xjbar), where E is the first moment of a variable, xi is the i-th variable and xibar the mean of the xi variable.

WARNING: This function has been replaced by cov.

Examples

x=[0.2113249 0.0002211 0.6653811;0.7560439 0.4453586 0.6283918]
v=mvvacov(x)

Bibliography

Saporta, Gilbert, Probabilites, Analyse des Donnees et Statistique, Editions Technip, Paris, 1990. Mardia, K.V., Kent, J.T. & Bibby, J.M., Multivariate Analysis, Academic Press, 1979.

History

ВерсияОписание
5.5.0 Function tagged obsolete. Will be removed in 6.0.0. See the cov function.
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Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Thu Oct 02 14:01:07 CEST 2014