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. Cases where the profile log-likelihood flattens above the value at which a confidence limit is defined can be handled, leading to a limit at plus or minus infinity. Disjoint confidence intervals will not be found.
| Version: | 1.1.1 |
| Depends: | R (≥ 4.1.0) |
| Imports: | graphics, itp, stats, utils |
| Suggests: | testthat (≥ 3.0.0) |
| Published: | 2026-01-27 |
| 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, NEWS |
| CRAN checks: | profileCI results |
| Reference manual: | profileCI.html , profileCI.pdf |
| Package source: | profileCI_1.1.1.tar.gz |
| Windows binaries: | r-devel: profileCI_1.1.1.zip, r-release: profileCI_1.1.1.zip, r-oldrel: profileCI_1.1.1.zip |
| macOS binaries: | r-release (arm64): profileCI_1.1.1.tgz, r-oldrel (arm64): profileCI_1.1.1.tgz, r-release (x86_64): profileCI_1.1.1.tgz, r-oldrel (x86_64): profileCI_1.1.1.tgz |
| Old sources: | profileCI archive |
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