mfp2: Multivariable Fractional Polynomial Models with Extensions
Multivariable fractional polynomial algorithm simultaneously selects variables and functional forms in both generalized linear models and Cox proportional hazard models. Key references are Royston and Altman (1994) <doi:10.2307/2986270> and Royston and Sauerbrei (2008, ISBN:978-0-470-02842-1). In addition, it can model a sigmoid relationship between variable x and an outcome variable y using the approximate cumulative distribution transformation proposed by Royston (2014) <doi:10.1177/1536867X1401400206>. This feature distinguishes it from a standard fractional polynomial function, which lacks the ability to achieve such modeling.
| Version: |
1.0.1 |
| Depends: |
R (≥ 4.2.0) |
| Imports: |
ggplot2 (≥ 3.4.0), stats, survival, utils |
| Suggests: |
knitr, testthat (≥ 3.0.0), xfun, rmarkdown, formatR, patchwork, spelling |
| Published: |
2025-05-15 |
| Author: |
Edwin Kipruto [aut, cre],
Michael Kammer [aut],
Patrick Royston [aut],
Willi Sauerbrei [aut] |
| Maintainer: |
Edwin Kipruto <edwin.kipruto at uniklinik-freiburg.de> |
| BugReports: |
https://github.com/EdwinKipruto/mfp2/issues |
| License: |
GPL-3 |
| URL: |
https://github.com/EdwinKipruto/mfp2 |
| NeedsCompilation: |
no |
| Language: |
en-US |
| Materials: |
README NEWS |
| CRAN checks: |
mfp2 results |
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