Description
Formula-based user-interfaces to specific transformation models implemented in package 'mlt' (<DOI:10.32614/CRAN.package.mlt>, <DOI:10.32614/CRAN.package.mlt.docreg>). 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>) and a tutorial explains applications in survival analysis (Siegfried et al., 2025, <DOI:10.48550/arXiv.2402.06428>). 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. The package contains an implementation of a doubly robust score test, described in Kook et al. (2024, <DOI:10.1080/01621459.2024.2395588>).
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CRAN Check Status
Show all 14 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | OK |
| r-devel-linux-x86_64-debian-gcc | OK |
| r-devel-linux-x86_64-fedora-clang | OK |
| r-devel-linux-x86_64-fedora-gcc | OK |
| r-devel-macos-arm64 | OK |
| r-devel-windows-x86_64 | OK |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | OK |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check History
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 17, 2026
NOTE 13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 14, 2026
tests
Running 'Coxph-Ex.R' [12s] Comparing 'Coxph-Ex.Rout' to 'Coxph-Ex.Rout.save' ... OK Running 'KaplanMeier-Ex.R' [3s] Running 'PI_OVL-Ex.R' [3s] Running 'Polr-Ex.R' [10s] Comparing 'Polr-Ex.Rout' to 'Polr-Ex.Rout.save' ... OK Running 'Survr ...[truncated]... face.R' [33s] Running 'mtram-Ex.R' [10s] Comparing 'mtram-Ex.Rout' to 'mtram-Ex.Rout.save' ...63,64d62 < attr(,"class") < [1] "vcmat_us" "matrix" "array" Running 'stram-Ex.R' [40s] Comparing 'stram-Ex.Rout' to 'stram-Ex.Rout.save' ... OK
ERROR 11 OK · 1 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE Mar 10, 2026
re-building of vignette outputs
Error(s) in re-building vignettes: --- re-building ‘NAMI.Rnw’ using knitr --- finished re-building ‘NAMI.Rnw’ --- re-building ‘mtram.Rnw’ using knitr --- finished re-building ‘mtram.Rnw’ +-+mtram.pdf *** caught segfault *** address 0x2070, cause ...[truncated]... only once per page --- finished re-building ‘survtram.Rnw’ --- re-building ‘tram.Rnw’ using knitr --- finished re-building ‘tram.Rnw’ SUMMARY: processing the following file failed: ‘mtram.Rnw’ Error: Vignette re-building failed. Execution halted
Rd files
prepare_Rd: ./man/Aareg.Rd:55: unknown macro '\bibcitet'
prepare_Rd: ./man/Aareg.Rd:56: unknown macro '\bibcitet'
checkRd: (-1) Aareg.Rd:55: Lost braces
55 | can be found in \bibcitet{tram::Hothorn:Moest:Buehlmann:2017} and
|
...[truncated]...
2018}. Location-scale transformation
| ^
checkRd: (-1) tram.Rd:159: Lost braces
159 | models have been introduced by \bibcitet{tram::Siegfried:Kook:Hothorn:2023}.
| ^
tests
Running 'Coxph-Ex.R' [12s] Comparing 'Coxph-Ex.Rout' to 'Coxph-Ex.Rout.save' ... OK Running 'KaplanMeier-Ex.R' [3s] Running 'PI_OVL-Ex.R' [3s] Running 'Polr-Ex.R' [10s] Comparing 'Polr-Ex.Rout' to 'Polr-Ex.Rout.save' ... OK Running 'Survr ...[truncated]... face.R' [33s] Running 'mtram-Ex.R' [10s] Comparing 'mtram-Ex.Rout' to 'mtram-Ex.Rout.save' ...63,64d62 < attr(,"class") < [1] "vcmat_us" "matrix" "array" Running 'stram-Ex.R' [40s] Comparing 'stram-Ex.Rout' to 'stram-Ex.Rout.save' ... OK