News and events
13 December 2018
Research Seminar: The Christmas Tree Plot: A graphical tool for assessing the suitability of a count regression model
Presented By Paul Wilson (University of Wolverhampton)
- N.1.12 Haselgrave
About this event
Whilst many numeric methods, such as AIC and deviance, exist for assessing or comparing model fit, diagrammatic methods are few. We present here a diagnostic plot, to which we refer as `Christmas tree plot', due its characteristic shape, that may be used to visually assess the suitability of a given count data model. The origin of this method stems from a desire to develop techniques for assessing the suitability of count regression models that would be understandable to statistical practitioners. We will also outline this history.