- UPSpace Home
- →
- Natural and Agricultural Sciences
- →
- Statistics
- →
- Browsing Statistics by Issue Date
JavaScript is disabled for your browser. Some features of this site may not work without it.
Browsing Statistics by Issue Date
Now showing items 1-20 of 614
-
(Southern African Institute for Industrial Engineering, 2003)Artificial neural networks are powerful tools for time series forecasting. The problem addressed in this article is to do multi-step prediction of a stationary time series, and to find the associated prediction limits. ...
-
(Suid Afrikaanse Akademie vir Wetenskap & Kuns, 2004)Historically disadvantaged students in South Africa often underachieve in mathematics due to a number of factors. Action research that was conducted at the (former) Technikon Northern Gauteng to investigate ways in which ...
-
(Suid Afrikaanse Akademie vir Wetenskap & Kuns, 2005)Problem-based approach to mathematics in grades 9 and 11 in the Limpopo Province: Teachers of schools in the central region of the Limpopo Province of South Africa received training in a problem-based approach to the ...
-
(Suid Afrikaanse Akademie vir Wetenskap & Kuns, 2005)Inadequate achievement in mathematics appears to be a major problem in post-apartheid South Africa. In the current article this phenomenon is discussed and possible reasons are indicated. The primary aim of the article is ...
-
(University of Pretoria, 2006-11-20)Please read the abstract in the section 00front of this document Accompanied by 1 disc available at main counter with shelf number EM 519.5 DE KOSTER. Master copy at back of book
-
(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 ...
-
(University of Pretoria, 2007-02-23)The analysis of a time series is a problem well known to statisticians. Neural networks form the basis of an entirely non-linear approach to the analysis of time series. It has been widely used in pattern recognition, ...
-
(In House Publications, 2007-05)Objective: To determine the persistence of Attention Deficit Hyperactivity Disorder (ADHD) into adulthood in parents of children diagnosed with ADHD and currently attending child and adolescent psychiatric clinics ...
-
(University of Pretoria, 2007-06-18)An attempt is made in this thesis to study the optimization and estimation of stochastic models of manpower systems incorporating one or more of the following aspects: (i) recruitment, (ii) promotion, (iii) training and ...
-
(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2007-12)
-
(University of Pretoria, 2007-12-20)The theory of ordinary factor analysis and its application by means of software packages do not make provision for data sampled from populations with hierarchical structures. Since data are often obtained from such populations ...
-
(South African Society of Crop Production/ Soil Science Society of South Africa/ Southern African Weed Science Society/ Southern African Society for Horticultural Sciences, 2008)Tef grain yield is dependent on a number of component characters such as plant height and panicle length. These characters and consequently yield are governed by a large number of factors including environmental factors. ...
-
(Taylor & Francis, 2008)The effects of parameter estimation are examined for the well-known c-chart for attributes data. The exact run length distribution is obtained for Phase II applications, when the true average number of non-conformities, ...
-
(Wiley, 2008-05-29)The influence of 2-methoxyestradiol (2ME) was investigated on cell growth, morphology and spindle formation in a tumorigenic (MCF-7) and non-tumorigenic (MCF-12A) epithelial breast cell line. Inhibition of cell growth was ...
-
(University of Pretoria, 2008-08-11)Variable selection refers to the problem of selecting input variables that are most predictive of a given outcome. Variable selection problems are found in all machine learning tasks, supervised or unsupervised, classification, ...
-
A phase II nonparametric control chart based on precedence statistics with runs-type signaling rules (Elsevier, 2008-09)Nonparametric control charts do not require knowledge about the shape of the underlying distribution and can thus be attractive in certain situations. Two new Shewhart- type nonparametric control charts are proposed for ...
-
(Elsevier, 2008-12)OBJECTIVE: The auditory steady-state response (ASSR) to air-conduction (AC) stimuli has been widely incorporated into audiological test-batteries for the pediatric population. The current understanding of ASSR to bone ...
-
(Current Science Association, 2009-03)A simple way of graphically comparing the bowling and batting performances of cricketers was illustrated using records from the IPL. The graphs are applicable to any format of cricket and can furthermore be used to identify ...
-
(University of Pretoria, 2009-08-12)Please read the abstract in the section front of this document
-
(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 ...
Now showing items 1-20 of 614