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tram  

Transformation Models
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("tram", "1.3-2")



Attach the package and use:
library("tram")
Maintained by
Torsten Hothorn
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2018-02-26
Latest Update: 2025-06-18
Description:
Formula-based user-interfaces to specific transformation models implemented in package 'mlt'. Available models include Cox models, some parametric survival models (Weibull, etc.), models for ordered categorical variables, normal and non-normal (Box-Cox type) linear models, and continuous outcome logistic regression (Lohse et al., 2017, <doi:10.12688/f1000research.12934.1>). The underlying theory is described in Hothorn et al. (2018) <doi:10.1111/sjos.12291>. An extension to transformation models for clustered data is provided (Barbanti and Hothorn, 2022, <doi:10.1093/biostatistics/kxac048>). Multivariate conditional transformation models (Klein et al, 2022, <doi:10.1111/sjos.12501>) and shift-scale transformation models (Siegfried et al, 2023, <doi:10.1080/00031305.2023.2203177>) can be fitted as well.
How to cite:
Torsten Hothorn (2018). tram: Transformation Models. R package version 1.3-2, https://cran.r-project.org/web/packages/tram. Accessed 05 Aug. 2026.
Previous versions and publish date:
(2026-07-16 14:51), 0.2-0 (2018-02-26 20:16), 0.2-1 (2018-04-23 11:19), 0.2-2 (2018-06-22 20:26), 0.2-3 (2018-09-18 13:10), 0.2-4 (2019-01-23 09:30), 0.2-5 (2019-02-27 17:20), 0.2-6 (2019-06-23 07:50), 0.3-0 (2019-10-22 11:30), 0.3-1 (2019-11-07 07:10), 0.3-2 (2020-01-12 07:00), 0.4-0 (2020-05-13 12:40), 0.5-0 (2020-08-31 16:10), 0.5-1 (2020-09-04 07:10), 0.5-2 (2020-10-24 08:00), 0.6-0 (2021-03-10 16:50), 0.6-1 (2021-09-16 17:10), 0.6-2 (2021-12-07 15:20), 0.6-3 (2022-01-04 15:20), 0.6-4 (2022-01-14 10:40), 0.7-0 (2022-04-01 11:40), 0.7-1 (2022-05-18 15:40), 0.7-2 (2022-08-07 14:30), 0.8-0 (2022-11-02 10:20), 0.8-1 (2023-03-09 14:20), 0.8-2 (2023-03-28 18:40), 0.8-3 (2023-05-22 21:20), 1.0-0 (2023-08-25 17:30), 1.0-1 (2023-12-18 13:30), 1.0-2 (2024-01-30 12:00), 1.0-3 (2024-04-16 22:40), 1.0-4 (2024-05-13 16:40), 1.0-5 (2024-08-17 17:40), 1.0-6 (2024-09-18 17:30), 1.1-0 (2024-09-26 20:00), 1.1-1 (2024-09-28 04:30), 1.1-2 (2024-10-04 09:30), 1.2-0 (2024-11-19 13:10), 1.2-1 (2025-02-25 14:30), 1.2-2 (2025-05-09 17:40), 1.2-3 (2025-06-18 11:40), 1.2-4 (2025-09-23 18:10), 1.2-5 (2025-10-08 07:10), 1.3-0 (2025-11-18 12:10), 1.3-1 (2025-12-04 16:00), 1.3-2 (2025-12-15 15:30), 1.4-0 (2026-02-26 16:30), 1.4-1 (2026-03-08 07:10), 1.4-2 (2026-05-09 16:40), 1.4-3 (2026-06-05 17:40)
Other packages that cited tram R package
View tram citation profile
Other R packages that tram depends, imports, suggests or enhances
Complete documentation for tram
Functions, R codes and Examples using the tram R package
Some associated functions: Aareg . BoxCox . Colr . Compris . Coxph . Lehmann . Lm . Polr . Survreg . mmlt . mtram . perm_test . score_test . tram-methods . tram . 
Some associated R codes: Compris.R . internal.R . methods.R . mmlt.R . models.R . mtram.R . plot.R . tram.R .  Full tram package functions and examples
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