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cotram

Count Transformation Models

v0.6-1 · Jun 9, 2026 · GPL-2

Description

Count transformation models featuring parameters interpretable as discrete hazard ratios, odds ratios, reverse-time discrete hazard ratios, or transformed expectations. An appropriate data transformation for a count outcome and regression coefficients are simultaneously estimated by maximising the exact discrete log-likelihood using the computational framework provided in package 'mlt', technical details are given in Siegfried & Hothorn (2020) <DOI:10.1111/2041-210X.13383>. The package also features joint count transformation models with covariate-dependent correlations applied to a species community of three aquatic birds <DOI:10.48550/arXiv.2201.13095>.

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r-devel-windows-x86_64 OK
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Check History

OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 10, 2026
WARNING 11 OK · 0 NOTE · 3 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
WARNING r-release-macos-arm64

re-building of vignette outputs

Error(s) in re-building vignettes:
--- re-building ‘cotram.Rnw’ using knitr
trying URL 'https://zenodo.org/record/17179/files/DVC.tgz'
Content type 'application/octet-stream' length 2292581 bytes (2.2 MB)
=============================================
...[truncated]...
 \usepackage
                {color}^^M
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘cotram.Rnw’

SUMMARY: processing the following file failed:
  ‘cotram.Rnw’

Error: Vignette re-building failed.
Execution halted
WARNING r-oldrel-macos-arm64

re-building of vignette outputs

Error(s) in re-building vignettes:
--- re-building ‘cotram.Rnw’ using knitr
trying URL 'https://zenodo.org/record/17179/files/DVC.tgz'
Content type 'application/octet-stream' length 2292581 bytes (2.2 MB)
=============================================
...[truncated]...
 \usepackage
                {color}^^M
!  ==> Fatal error occurred, no output PDF file produced!
--- failed re-building ‘cotram.Rnw’

SUMMARY: processing the following file failed:
  ‘cotram.Rnw’

Error: Vignette re-building failed.
Execution halted
WARNING r-oldrel-macos-x86_64

package subdirectories

Subdirectory 'demo' contains invalid file names:
  ‘aquabirds.Rout.save’
Please remove or rename the files.
See section ‘Package subdirectories’ in the ‘Writing R Extensions’
manual.

Reverse Dependencies (3)

imports

suggests

Dependency Network

Dependencies Reverse dependencies tram mlt variables basefun survival qrng tramicp tramvs tram cotram

Version History

18 tracked
updated 0.6-1 ← 0.6-0 diff Jun 9, 2026
new 0.6-0 Mar 10, 2026
updated 0.6-0 ← 0.5-3 diff Nov 18, 2025
updated 0.5-3 ← 0.5-2 diff Oct 7, 2025
updated 0.5-2 ← 0.5-1 diff Sep 17, 2024
updated 0.5-1 ← 0.5-0 diff Jul 18, 2024
updated 0.5-0 ← 0.4-4 diff Jul 17, 2024
updated 0.4-4 ← 0.4-2 diff May 24, 2023
updated 0.4-2 ← 0.4-1 diff Oct 31, 2022
updated 0.4-1 ← 0.4-0 diff Jul 13, 2022
updated 0.4-0 ← 0.3-2 diff Jul 6, 2022
updated 0.3-2 ← 0.3-1 diff Jan 27, 2022
updated 0.3-1 ← 0.3-0 diff Oct 7, 2021
updated 0.3-0 ← 0.2-1 diff Sep 19, 2021
updated 0.2-1 ← 0.2-0 diff Feb 23, 2021