Browsing Research Articles (Statistics) by Title

Browsing Research Articles (Statistics) by Title

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  • The validity of arterial measurements in a South African embalmed body population 
    Schoeman, Marelize; Van Schoor, Albert-Neels; Suleman, Farhana Ebrahim; Louw, Liebie; Du Toit, Peet J. (Springer, 2018-01)
    INTRODUCTION : Knowledge of the normal arterial diameter at a given anatomical point is the first step toward quantifying the severity of cardiovascular diseases. According to several studies, parameters such as weight, ...
  • Virulence and survival of native entomopathogenic nematodes for the management of white grubs in South Africa 
    Abate, Birhan Addisie; Slippers, Bernard; Wingfield, Michael J.; Conlong, Desmond E.; Burger, Divan Aristo; Hurley, Brett Phillip (Elsevier, 2019-10)
    Entomopathogenic nematodes (EPNs) provide a potential alternative to chemical insecticides to control root-feeding pests of agricultural and forestry crops. One of the challenges in using EPNs in these environments is low ...
  • Weighted distributions of eigenvalues 
    Arashi, Mohammad; Bekker, Andriette, 1958-; Van Niekerk, Janet (Elsevier, 2019-01)
    In this article, the weighted version of a probability density function is considered as a mapping of the original distribution. Generally, the properties of the distribution of a random matrix and the distributions of its ...
  • Weighted-type Wishart distributions with application 
    Arashi, Mohammad; Bekker, Andriette, 1958-; Van Niekerk, Janet (National Statistical Institute of Portugal, 2017)
    In this paper, we consider a general framework for constructing new valid densities regarding a random matrix variate. However, we focus speci cally on the Wishart distribution. The methodology involves coupling the ...
  • Wishart distributions : advances in theory with Bayesian application 
    Bekker, Andriette, 1958-; Van Niekerk, Janet; Arashi, Mohammad (Elsevier, 2017-03)
    In this paper, we generalize the Wishart distribution utilizing a fresh approach that leads to the hypergeometric Wishart generator distribution with the Wishart generator and the Wishart as special cases. Important ...
  • Wishart ratios with dependent structure : new members of the bimatrix beta type IV 
    Bekker, Andriette, 1958-; Roux, Jacobus J.J.; Arashi, Mohammad (Elsevier, 2011-12)
    In multivariate statistics under normality, the problems of interest are random covariance matrices (known as Wishart matrices) and "ratios" of Wishart matrices that arise in multivariate analysis of variance (MANOVA). ...
  • The world in your hands : GeoHealth then and now 
    Bergquist, Robert; Manda, S.O.M. (Samuel) (PAGEpress, 2019)
    Infectious diseases transmitted by vectors/intermediate hosts constitute a major part of the economic burden related to public health in the endemic countries of the tropics, which challenges local welfare and hinders ...