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QQreflimits  

Reference Limits using QQ Methodology
View on CRAN: Click here


Download and install QQreflimits package within the R console
Install from CRAN:
install.packages("QQreflimits")

Install from Github:
library("remotes")
install_github("cran/QQreflimits")

Install by package version:
library("remotes")
install_version("QQreflimits", "1.0.3")



Attach the package and use:
library("QQreflimits")
Maintained by
Jessica J. Kraker
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2025-09-01
Latest Update: 2025-09-01
Description:
A collection of routines for finding reference limits using, where appropriate, QQ methodology.All use a data vector X of cases from the reference population. The default is to get the central 95% reference range of the population, namely the 2.5 and 97.5 percentile, with optional adjustment of the range.Along with the reference limits, we want confidence intervals which, for historical reasons, are typically at 90% confidence.A full analysis provides six numbers: – the upper and the lower reference limits, and - each of their confidence intervals. For application details, see Hawkins and Esquivel (2024) <doi:10.1093/jalm/jfad109>.
How to cite:
Jessica J. Kraker (2025). QQreflimits: Reference Limits using QQ Methodology. R package version 1.0.3, https://cran.r-project.org/web/packages/QQreflimits. Accessed 25 Oct. 2026.
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