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Statements

Subject Item
dbr:Inverse_distribution
dbo:wikiPageWikiLink
dbr:Inverse_matrix_gamma_distribution
Subject Item
dbr:Inverse_matrix_gamma_distribution
rdf:type
yago:Abstraction100002137 yago:WikicatProbabilityDistributions yago:WikicatContinuousDistributions yago:Matrix108267640 yago:PsychologicalFeature100023100 yago:Structure105726345 yago:WikicatRandomMatrices yago:Arrangement105726596 yago:Arrangement107938773 yago:Array107939382 yago:Distribution105729036 yago:Cognition100023271 yago:Group100031264 yago:WikicatMultivariateContinuousDistributions
rdfs:label
Inverse matrix gamma distribution Distribució matriu gamma inversa
rdfs:comment
En estadística, la distribució matriu gamma inversa és una generalització de la a matrius definides positivament. Es tracta d'una versió més general de la , i s'utilitza de manera similar, per exemple, com el de la matriu de covariància d'una distribució normal multivariant o . La resultant de la composició d'una matriu normal amb una matriu inversa gamma a priori a la matriu de covariància és una . Això es redueix a la amb . In statistics, the inverse matrix gamma distribution is a generalization of the inverse gamma distribution to positive-definite matrices. It is a more general version of the inverse Wishart distribution, and is used similarly, e.g. as the conjugate prior of the covariance matrix of a multivariate normal distribution or matrix normal distribution. The compound distribution resulting from compounding a matrix normal with an inverse matrix gamma prior over the covariance matrix is a generalized matrix t-distribution. This reduces to the inverse Wishart distribution with degrees of freedom when .
dbp:name
Inverse matrix gamma
dcterms:subject
dbc:Continuous_distributions dbc:Multivariate_continuous_distributions dbc:Random_matrices
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35397495
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992742138
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positive-definite real matrix
dbp:wikiPageUsesTemplate
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dbp:type
density
dbo:abstract
En estadística, la distribució matriu gamma inversa és una generalització de la a matrius definides positivament. Es tracta d'una versió més general de la , i s'utilitza de manera similar, per exemple, com el de la matriu de covariància d'una distribució normal multivariant o . La resultant de la composició d'una matriu normal amb una matriu inversa gamma a priori a la matriu de covariància és una . Això es redueix a la amb . In statistics, the inverse matrix gamma distribution is a generalization of the inverse gamma distribution to positive-definite matrices. It is a more general version of the inverse Wishart distribution, and is used similarly, e.g. as the conjugate prior of the covariance matrix of a multivariate normal distribution or matrix normal distribution. The compound distribution resulting from compounding a matrix normal with an inverse matrix gamma prior over the covariance matrix is a generalized matrix t-distribution. This reduces to the inverse Wishart distribution with degrees of freedom when .
dbp:parameters
scale parameter scale dbr:Shape_parameter
dbp:pdf
* is the multivariate gamma function.
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