Browsing Theses and Dissertations (Statistics) by Title

Browsing Theses and Dissertations (Statistics) by Title

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  • Gouws, Divan (University of Pretoria, 2023)
    Mixtures of quantile regressions are explored through the lens of a kernel density based EM-type algorithm and a newly proposed CEM-type algorithm. This allows the simultaneous clustering and modeling of conditional ...
  • Otto, Arnoldus (University of Pretoria, 2023)
    The search for appropriate and flexible models for describing complex data sets, often with departure from normality, remains a main interest in various computational research fields. In this study, the focus is on developing ...
  • Rowland, Brett William (University of Pretoria, 2017-08)
    The normal distribution is popular in many statistical contexts. However, due to its symmetry and tail behavior it may not necessarily be the best choice to use in many real world applications. In order to alleviate the ...
  • Diko, Mandla Doctor (University of Pretoria, 2014)
    In Chapter 1, we give a brief introduction to statistical process control (SPC) and provide definitions as well as background information regarding the research conducted in this mini-dissertation. This will aid in ...
  • Kunene, Thembinkosi (University of Pretoria, 2020)
    In this mini-dissertation we discuss the spatial relationship between point processes and a linear network. As a starting point, we discuss basic spatial point processes and tests for first-order homogeneity. Following that, ...
  • Dresselhaus, Claudia Josephina (University of Pretoria, 2023)
    Rarely has the world undertaken a public health effort equal in scale or scope to the one it faced in response to the COVID-19 pandemic. Countries around the world implemented government interventions such as lockdowns and ...
  • Reynolds, Hayley (University of Pretoria, 2017)
    Rabies has been reported in Tanzania, mainly in the southern highland regions, since 1954. To date, rabies is endemic in all districts in Tanzania and efforts are being made to contain the disease. It was determined that ...
  • Thiede, Renate Nicole (University of Pretoria, 2019)
    Informal unpaved roads in developing countries arise naturally through human movement and informal housing setups. These roads are not authorised nor maintained by council, nor recorded in official databases or online maps. ...
  • Crafford, Gretel (University of Pretoria, 2007)
    The maximum likelihood (ML) estimation procedure of Matthews and Crowther (1995: A maximum likelihood estimation procedure when modelling in terms of constraints. South African Statistical Journal, 29, 29-51) is utilized ...
  • Steenkamp, Jan Hendrik Harm (University of Pretoria, 2014)
    A general insurance risk model consists of in initial reserve, the premiums collected, the return on investment of these premiums, the claims frequency and the claims sizes. Except for the initial reserve, these components ...
  • Thiebaut, Nicolene Magrietha (University of Pretoria, 2011)
    In practice, when one has many candidate variables as explanatory variables in multiple regression, there is always the possibility that variables that are important determinants of the response variable might be omitted ...
  • Thiebaut, Nicolene Magrietha (University of Pretoria, 2011-11-18)
    Please read the abstract in the dissertation.
  • STK 795 Students, WST 795 Students (University of Pretoria, 2015)
    These documents contain the honours research reports for each year for the Department of Statistics.
  • Labeodan, Moremi Morire OreOluwapo (University of Pretoria, 2009-10-29)
    In this thesis, some issues about the human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) have been addressed by concentrating on the stochastic modelling of the dynamics of the viruses. The ...
  • Van Niekerk, Janet (University of Pretoria, 2012)
    The problem of estimation has been widely investigated with all different kinds of assumptions. This study focusses on the subjective Bayesian estimation of a location vector and characteristic matrix for the univariate ...
  • Coetzee, Evert Johan (University of Pretoria, 2017-05)
    Chapter 1 of this mini-dissertation gives an introduction to Statistical Process Control (SPC) and provides some background on the Shewhart, CUSUM and the EWMA control charts. The bootstrap by [9] Efron (1979) is discussed ...
  • Human, Schalk William (University of Pretoria, 2009-08-12)
    Please read the abstract in the section front of this document
  • Graham, Marien Alet (University of Pretoria, 2011-02-24)
    Statistical quality control charts originated in the late 1920’s by Shewhart (1926, 1931 and 1939). Their applications in various disciplines have been ever-increasing. Although most control charts are distribution-based, ...
  • Mazarura, Jocelyn Rangarirai (University of Pretoria, 2015)
    Over the past few years, our increased ability to store large amounts of data, coupled with the increasing accessibility of the internet, has created massive stores of digital information. Consequently, it has become ...
  • Van Wyk, Delene Martine (University of Pretoria, 2021)
    One of the most important distributions in the circular world is the cardioid distribution. This distribution, however, suffers limitations for multimodal or asymmetric occurrences in circular data. This study addresses ...