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nltm

Non-Linear Transformation Models

v1.4.6 · Jul 23, 2025 · GPL-2

Description

Fits a non-linear transformation model ('nltm') for analyzing survival data, see Tsodikov (2003) <doi:10.1111/1467-9868.00414>. The class of 'nltm' includes the following currently supported models: Cox proportional hazard, proportional hazard cure, proportional odds, proportional hazard - proportional hazard cure, proportional hazard - proportional odds cure, Gamma frailty, and proportional hazard - proportional odds.

Downloads

CRAN

298

Last 30 days

15706th

684

Last 90 days

2.9K

Last year

Trend: +74.3% (30d vs prior 30d)

r2u CRAN

24

Last 30 days

114

Last 90 days

420

Last year

Trend: -40% (30d vs prior 30d)

autoCRAN

6

Last 7 days

9

Last 30 days

3

All-time

autoCRAN-only: this name is served only by autoCRAN, so the count is exact.

CRAN Check Status

13 OK
Show all 13 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-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 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 9, 2026
WARNING 12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE Jun 8, 2026
WARNING r-devel-linux-x86_64-debian-gcc

Rd files

cannot open the connection
problem found in ‘nltm.control.Rd’
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Code

Structure

Lines of code

4,555

Files

26

Compiled share

71.9%

Has compiled src

Yes

Language breakdown

R 809 (17.8%)C/C++/src 3,273 (71.9%)Docs 473 (10.4%)

API

Exported functions

1

Internal functions

17

Testing & CI

Has tests

No

Test-to-code ratio

0.00

testthat edition

CI present

No

CI type

[]

PR gated

No

Docs

Return-value doc rate

100%

\dontrun example ratio

0%

Roxygen coverage

100%

Has pkgdown

No

NEWS present

No

Health & Security signals

Informational signals; not verdicts.

on.exit coverage

100%

Unsafe pattern score

0

Dep constraint coverage

0%

Secret pattern count

0

Bundled 3rd-party code

2 items

Portability & License

Min R version

2.8.1

System requirements

C++ standard

License

GPL-2

License flags

SPDX valid, OSI approved

History

Versions

10

First release

2006-03-24

Latest release

2025-07-23

Avg cadence

523 days

Cold removal rate

Dep drift

0

LOC over versions

v1.1: 3,971 LOCv1.2: 3,991 LOCv1.3: 4,477 LOCv1.4: 4,486 LOCv1.4.1: 4,487 LOCv1.4.2: 4,550 LOCv1.4.3: 4,545 LOCv1.4.4: 4,542 LOCv1.4.5: 4,555 LOCv1.4.6: 4,555 LOC

Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.

Dependency Network

Dependencies Reverse dependencies survival nltm

Version History

11 tracked
new 1.4.6 Mar 10, 2026
updated 1.4.6 ← 1.4.5 diff Jul 22, 2025
updated 1.4.5 ← 1.4.4 diff Dec 2, 2023
updated 1.4.4 ← 1.4.3 diff Apr 10, 2022
updated 1.4.3 ← 1.4.2 diff Apr 5, 2022
updated 1.4.2 ← 1.4.1 diff Jul 31, 2019
updated 1.4.1 ← 1.4 diff May 6, 2010
updated 1.4 ← 1.3 diff Feb 14, 2009
updated 1.3 ← 1.2 diff Sep 13, 2007
updated 1.2 ← 1.1 diff Jul 23, 2006
new 1.1 Mar 23, 2006