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profileCI: Profiling a Log-Likelihood to Calculate Confidence Intervals

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.

Version: 1.0.0
Depends: R (≥ 4.1.0)
Imports: graphics, itp, stats, utils
Suggests: testthat (≥ 3.0.0)
Published: 2025-06-04
DOI: 10.32614/CRAN.package.profileCI
Author: Paul J. Northrop [aut, cre, cph]
Maintainer: Paul J. Northrop <p.northrop at ucl.ac.uk>
BugReports: https://github.com/paulnorthrop/profileCI/issues
License: GPL (≥ 3)
URL: https://paulnorthrop.github.io/profileCI/, https://github.com/paulnorthrop/profileCI
NeedsCompilation: no
Materials: README
CRAN checks: profileCI results

Documentation:

Reference manual: profileCI.pdf

Downloads:

Package source: profileCI_1.0.0.tar.gz
Windows binaries: r-devel: profileCI_1.0.0.zip, r-release: profileCI_1.0.0.zip, r-oldrel: profileCI_1.0.0.zip
macOS binaries: r-release (arm64): profileCI_1.0.0.tgz, r-oldrel (arm64): profileCI_1.0.0.tgz, r-release (x86_64): profileCI_1.0.0.tgz, r-oldrel (x86_64): profileCI_1.0.0.tgz

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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