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profileCI  

Profiling a Log-Likelihood to Calculate Confidence Intervals
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("profileCI", "1.0.0")



Attach the package and use:
library("profileCI")
Maintained by
Paul J. Northrop
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2025-06-04
Latest Update: 2025-06-04
Description:
Provides tools for profiling a user-supplied log-likelihood function to calculate confidence intervals for model parameters. Speed of computation can be improved by adjusting the step sizes in the profiling and/or starting the profiling from limits based on the approximate large sample normal distribution for the maximum likelihood estimator of a parameter. The accuracy of the limits can be set by the user. A plot method visualises the log-likelihood and confidence interval. Only convex log-likelihoods are supported, that is, disjoint confidence intervals will not be found.
How to cite:
Paul J. Northrop (2025). profileCI: Profiling a Log-Likelihood to Calculate Confidence Intervals. R package version 1.0.0, https://cran.r-project.org/web/packages/profileCI. Accessed 12 Jun. 2025.
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