title: Monitoring meaningful rugby ratings.
abstract: The performance of individual rugby players can be quantified using multivariate analysis and modified control chart methodology. Using factor analysis, multivariate data are reduced to five orthogonal factors (key performance indicators). These factors are reduced to a single measure of performance by modifying control chart ideology. By comparing the observed peformances with 'unattainable perfection' rather than the average, a statistic that is suitable for monitoring the performance of individual rugby players with control charts is obtained for use by coaches and selectors.
authors.affiliation: Institut of Information and Mathmatical Sciences, Massey University, Albany Campus, Private Bag 102 904, North Shore Mail Centre, New Zealand. p.j.bracewell@massey.ac.nz
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Bracewell
mesh_terms: D003625:Data Collection / Q000379:methods; D005538:Football / Q000706:statistics & numerical data*; D006801:Humans; D015999:Multivariate Analysis; D009520:New Zealand; D013647:Task Performance and Analysis