A simple and intuitive test for number-inflation or number-deflation

Wilson, Paul; Einbeck, Jochen

Abstract

We present a test of zero-modification which checks if the number of zeros is consistent with the hypothesized count distribution. This test is easily extended to test for inflation or deflation of any non-negative values, and, by performing multiple tests of inflation/deflation of the counts present in observed data relative to any given model, it is possible to assess the suitability of that model. Such multiple testing may be represented diagrammatically. The test for number-inflation/deflation is informally called the “Christmas Eve Test” as the original idea occurred to the main author on December 24th, 2014, and the diagrammatic method the “Durham Diagram” as it was developed during preparation for a talk at Durham University.

Citation

Wilson, P., & Einbeck, J. (2015, July). A simple and intuitive test for number-inflation or number-deflation. Presented at 30th International Workshop on Statistical Modelling, Linz, Austria

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 30th International Workshop on Statistical Modelling
• Start Date: Jul 6, 2015
• End Date: Jul 10, 2015
• Acceptance Date: Mar 18, 2015
• Publication Date: Jul 10, 2015
• Deposit Date: Jan 8, 2016
• Publicly Available Date: Feb 2, 2016
• Volume: 2
• Pages: 299-302
• Book Title: Proceedings of the 30th International Workshop on Statistical Modelling. Linz, Austria, 6-10 July 2015.
• Public URL: https://durham-repository.worktribe.com/output/1152637
• Publisher URL: http://www.statmod.org/workshops_archive_proceedings_2015.htm
• Additional Information: Conference Dates: 6-10 July 2015