Speaking Stata: Quantile–quantile plots, generalized

Cox, Nicholas J.

Abstract

Quantile-quantile plots in the precise sense of scatterplots showing corresponding quantiles of two variables have long been supported by official command qqplot. That command is generalized here in several ways in a new command, qqplotg. In this article, I explain the major features of qqplotg and give several examples of its use. Themes include the use of quantile-quantile plots to explore the possibilities for working on a transformed scale and the value of plotting difference between quantiles versus mean quantile or plotting position. Various historical and methodological remarks are sprinkled throughout.

Citation

Cox, N. J. (2024). Speaking Stata: Quantile–quantile plots, generalized. The Stata Journal, 24(3), 514-534. https://doi.org/10.1177/1536867x241276114

• Journal Article Type: Article
• Acceptance Date: Aug 3, 2024
• Online Publication Date: Sep 10, 2024
• Publication Date: 2024-09
• Deposit Date: Oct 31, 2024
• Publicly Available Date: Oct 31, 2024
• Journal: The Stata Journal: Promoting communications on statistics and Stata
• Print ISSN: 1536-867X
• Electronic ISSN: 1536-8734
• Publisher: SAGE Publications
• Peer Reviewed: Peer Reviewed
• Volume: 24
• Issue: 3
• Pages: 514-534
• DOI: https://doi.org/10.1177/1536867x241276114
• Public URL: https://durham-repository.worktribe.com/output/2994517