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MVNtestchar (version 1.1.3)

Test for Multivariate Normal Distribution Based on a Characterization

Description

Provides a test of multivariate normality of an unknown sample that does not require estimation of the nuisance parameters, the mean and covariance matrix. Rather, a sequence of transformations removes these nuisance parameters and results in a set of sample matrices that are positive definite. These matrices are uniformly distributed on the space of positive definite matrices in the unit hyper-rectangle if and only if the original data is multivariate normal (Fairweather, 1973, Doctoral dissertation, University of Washington). The package performs a goodness of fit test of this hypothesis. In addition to the test, functions in the package give visualizations of the support region of positive definite matrices for bivariate samples.

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Version

Install

install.packages('MVNtestchar')

Monthly Downloads

196

Version

1.1.3

License

GPL (>= 2)

Maintainer

William Fairweather

Last Published

July 25th, 2020

Functions in MVNtestchar (1.1.3)

unknown.Np2

A Sample From an Unknown Bivariate Distribution
unknown.Np4

A Sample From an Unknown Four-variate Distribution
slice.v1

Rotatable Plot of Slice Through Support Region in Positive Definite 2 x 2 Matrix
testunknown

Process the Samples Whose Distribution is to be Tested
slice.v12

Rotatable Plot of Slice Through Support Region in Positive Definite 2 x 2 Matrix
support.p2

Show Support Region of Positive Definite Matrices with Rank 2
maxv12

Rotatable Plot of Surface of Possible Maximum Values of Off-diagonal Variable
MVNtestchar-package

MVNtestchar
unknown.Bp2

A Sample From an Unknown Bivariate Distribution
unknown.Bp4

A Sample From an Unknown Four-variate Distribution