the normal-Wishart distribution (or Gaussian-Wishart distribution) is a multivariate four-parameter family of continuous probability distributions. It...
5 KB (560 words) - 17:01, 10 June 2025
statistics, the Wishart distribution is a generalization of the gamma distribution to multiple dimensions. It is named in honor of John Wishart, who first...
27 KB (4,194 words) - 18:43, 6 April 2025
probability theory and statistics, the normal-inverse-Wishart distribution (or Gaussian-inverse-Wishart distribution) is a multivariate four-parameter family...
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normal distribution, multivariate Gaussian distribution, or joint normal distribution is a generalization of the one-dimensional (univariate) normal distribution...
65 KB (9,594 words) - 15:19, 3 May 2025
In statistics, the inverse Wishart distribution, also called the inverted Wishart distribution, is a probability distribution defined on real-valued positive-definite...
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matrix normal distribution or matrix Gaussian distribution is a probability distribution that is a generalization of the multivariate normal distribution to...
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s^{2}\chi _{k}^{2}} is a reparametrization of the gamma distribution and the univariate Wishart distribution. Specifically if X ∼ s 2 χ k 2 {\displaystyle X\sim...
45 KB (6,817 words) - 10:25, 19 March 2025
the ratio Z = X/Y is a ratio distribution. An example is the Cauchy distribution (also called the normal ratio distribution), which comes about as the ratio...
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distribution (a complex normal distribution is a bivariate normal distribution) Generalized chi-squared distribution Wishart distribution Complex random variable...
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internally studentized residuals Wilks' lambda distribution Wishart distribution Modified half-normal distribution with the pdf on ( 0 , ∞ ) {\displaystyle...
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In statistics, the complex Wishart distribution is a complex version of the Wishart distribution. It is the distribution of n {\displaystyle n} times...
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}{2}}} . inverse Wishart distribution. matrix gamma distribution. matrix normal distribution. matrix t-distribution. Wishart distribution. Iranmanesha, Anis;...
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of the Wishart distribution, and is used similarly, e.g. as the conjugate prior of the precision matrix of a multivariate normal distribution and matrix...
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{\text{N-}}\Gamma ^{-1}.} ) The normal-inverse-Wishart distribution is a generalization of the normal-inverse-gamma distribution that is defined over multivariate...
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gamma distribution is the conjugate prior for the precision of the normal distribution with known mean. The matrix gamma distribution and the Wishart distribution...
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elliptical distribution is any member of a broad family of probability distributions that generalize the multivariate normal distribution. In the simplified...
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Bernoulli distribution. The Wishart distribution The inverse-Wishart distribution The Lewandowski-Kurowicka-Joe distribution The matrix normal distribution The...
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Chi-square distribution Chow test Gamma distribution Hotelling's T-squared distribution Wilks' lambda distribution Wishart distribution Modified half-normal distribution...
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distribution arises as the marginal posterior distribution for the unknown variance of a normal distribution, if an uninformative prior is used, and as an...
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distribution. It is used in Bayesian inference as conjugate prior for the variance of the normal distribution. The inverse chi-squared distribution (or...
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(MANOVA). Wilks' lambda distribution is defined from two independent Wishart distributed variables as the ratio distribution of their determinants, given...
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categorical distribution and multinomial distribution; generalization of the beta distribution Wishart distribution, for a symmetric non-negative definite...
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|X_{t},A_{t},O_{fg})} is feasible". The algorithm employs a Normal-Wishart distribution as the conjugate prior of p ( θ | X t , A t , O f g ) {\displaystyle...
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marginal distribution of a sample bivariate normal covariance, a result also shown in the Wishart Distribution article. The approximate distribution of a...
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The complex inverse Wishart distribution is a matrix probability distribution defined on complex-valued positive-definite matrices and is the complex...
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Conjugate prior (redirect from Conjugate prior distribution)
family, and also consider the Wishart distribution, conjugate prior of the covariance matrix of a multivariate normal distribution, for an example where a large...
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{\displaystyle M} is a p × p {\displaystyle p\times p} random matrix with a Wishart distribution W ( I p , p , m ) {\displaystyle W(\mathbf {I} _{p,p},m)} with unit...
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inverse distributions include inverse-chi-squared distribution inverse-gamma distribution inverse-Wishart distribution inverse matrix gamma distribution Inverse...
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distribution with an inverse Wishart distribution placed over either of its covariance matrices, and the multivariate t-distribution can be generated in a similar...
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Dirichlet Distributions) Olkin, Ingram; Rubin, Herman (1964). "Multivariate Beta Distributions and Independence Properties of the Wishart Distribution". The...
48 KB (7,588 words) - 15:09, 7 June 2025