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A diagnostic plot for assessing model fit in count data models.

Einbeck, Jochen and Wilson, Paul (2016) 'A diagnostic plot for assessing model fit in count data models.', in Proceedings of the 31st International Workshop on Statistical Modelling. July 4-8, 2016, Rennes, France. , pp. 103-108.


Whilst many numeric methods, such as AIC and deviance, exist for assessing 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.

Item Type:Book chapter
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Date accepted:25 March 2016
Date deposited:28 July 2016
Date of first online publication:2016
Date first made open access:No date available

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