Results 21 to 30 of about 454 (77)
On the noncentral distribution of the ratio of the extreme roots of wishart matrix
International Journal of Mathematics and Mathematical Sciences, Volume 4, Issue 1, Page 147-154, 1981., 1981 The distribution of the ratio of the extreme latent roots of the Wishart matrix is useful in testing the sphericity hypothesis for a multivariate normal population. Let X be a p × n matrix whose columns are distributed independently as multivariate normal with zero mean vector and covariance matrix ∑.
V. B. Waikar
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Generalization of Log‐Xgamma Distribution: Applications and R Shiny Web‐Tool
Journal of Mathematics, Volume 2025, Issue 1, 2025.The two‐parameter xgamma distribution is employed to create a novel distribution that is suitable for bounded datasets within the interval (0, 1). A comprehensive analysis of the statistical properties of this newly proposed distribution is conducted.
Emrah Altun, Hana N. Alqifari, Jun Ye
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Journal of Probability and Statistics, Volume 2025, Issue 1, 2025.This paper introduces a new two‐parameter unit Weibull distribution defined on the interval (0, 1). It discusses the methodology for deriving its probability density function (PDF), explores various properties, and presents related functions. Numerous figures illustrate the distribution and demonstrate its effectiveness in fitting a wide range of ...
Iman M. Attia, Hyungjun Cho
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Uniform Random Sample and Symmetric Beta Distribution [PDF]
, 2013 N.L. Johnson and S. Kotz introduced in 1990 an interesting family of symmetric distributions which is based on randomly weighted average from uniform random samples.
Homei, Hazhir
core
Journal of Mathematics, Volume 2024, Issue 1, 2024.This paper introduces a new probability distribution called the mixture symmetric gamma (MSG) distribution, which is defined as a mixture of two symmetric gamma distributions. Its statistical properties and applications are explored. We first examine its mathematical properties, including the possible shapes of the corresponding probability density ...
Christophe Chesneau +4 more
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HeliyonThis paper focuses on the derivation of a new two-parameter discrete probability distribution. The new model is derived by mixing Poisson and Loai distributions and is named “Poisson Loai Distribution”.
Abdullah Ali H. Ahmadini +2 more
doaj +1 more source
Shape theory via polar decomposition [PDF]
, 2010 This work proposes a new model in the context of statistical theory of shape, based on the polar decomposition. The non isotropic noncentral elliptical shape distributions via polar decomposition is derived in the context of zonal polynomials, avoiding ...
Agraria Antonio Narro +2 more
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New Classes of Univariate Continuous Exponential Power Series Distributions [PDF]
, 2016 Recently, many researchers have developed various classes of continuous probability distributions which can be generated via the generalized Pearson differential equation and other techniques.
Ahsanullah, M. +4 more
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, 2010 This paper proposes a unified approach that enables the Wishart distribution to be studied simultaneously in the real, complex, quaternion and octonion cases.
Diaz-Garcia, Jose A. +1 more
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Smoothing-inspired lack-of-fit tests based on ranks
, 2008 A rank-based test of the null hypothesis that a regressor has no effect on a response variable is proposed and analyzed. This test is identical in structure to the order selection test but with the raw data replaced by ranks. The test is nonparametric in
Hart, Jeffrey D.
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