tram: Transformation Models

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 (Hothorn, 2019, <arxiv:1910.09219>). Multivariate conditional transformation models (<arxiv:1906.03151>) can be fitted as well.

Version: 0.5-1
Depends: R (≥ 3.5.0), mlt (≥ 1.2-0)
Imports: Formula, multcomp, variables (≥ 1.0-2), basefun (≥ 1.0-5), sandwich, stats, survival, graphics, Matrix, methods
Suggests: MASS,, trtf (≥ 0.3-3), mlbench, knitr, quantreg, colorspace, ATR, lme4, merDeriv, SparseGrid, alabama, numDeriv, gridExtra, lattice, latticeExtra, HSAUR3, mvtnorm, ordinalCont, coxme, glmmsr, mlt.docreg, ordinal, coin, asht
Published: 2020-09-04
Author: Torsten Hothorn ORCID iD [aut, cre], Luisa Barbanti [aut], Brian Ripley [ctb], Bill Venables [ctb], Douglas M. Bates [ctb], Nadja Klein [ctb]
Maintainer: Torsten Hothorn <Torsten.Hothorn at>
License: GPL-2
NeedsCompilation: yes
Citation: tram citation info
Materials: NEWS
CRAN checks: tram results


Reference manual: tram.pdf
Vignettes: mtram
Package source: tram_0.5-1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release: tram_0.5-1.tgz, r-oldrel: tram_0.5-1.tgz
Old sources: tram archive

Reverse dependencies:

Reverse depends: cotram, tramME, tramnet
Reverse suggests: mlt.docreg, multcomp, tbm


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