ucminf

General-Purpose Unconstrained Non-Linear Optimization

v1.2.3 · Apr 2, 2026 · GPL (>= 2)

Description

An algorithm for general-purpose unconstrained non-linear optimization. The algorithm is of quasi-Newton type with BFGS updating of the inverse Hessian and soft line search with a trust region type monitoring of the input to the line search algorithm. The interface of 'ucminf' is designed for easy interchange with 'optim'.

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CRAN Check Status

13 OK

Show all 13 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	OK	24.7s
r-devel-linux-x86_64-debian-gcc	OK	19.7s
r-devel-linux-x86_64-fedora-clang	OK	33.8s
r-devel-linux-x86_64-fedora-gcc	OK	32.2s
r-devel-windows-x86_64	OK	50s
r-oldrel-macos-arm64	OK	33s
r-oldrel-macos-x86_64	OK	86s
r-oldrel-windows-x86_64	OK	51s
r-patched-linux-x86_64	OK	20.7s
r-release-linux-x86_64	OK
r-release-macos-arm64	OK	11s
r-release-macos-x86_64	OK	29s
r-release-windows-x86_64	OK	49s

Additional Issues

rchk Details →

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 9, 2026

WARNING 9 OK · 4 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE Mar 20, 2026

NOTE r-devel-linux-x86_64-debian-clang

compiled code

File ‘ucminf/libs/ucminf.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

WARNING r-devel-linux-x86_64-debian-gcc

compiled code

File ‘ucminf/libs/ucminf.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’
This entry point may be removed soon.

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

NOTE r-devel-linux-x86_64-fedora-clang

compiled code

File ‘ucminf/libs/ucminf.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

NOTE r-devel-linux-x86_64-fedora-gcc

compiled code

File ‘ucminf/libs/ucminf.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

NOTE r-devel-windows-x86_64

compiled code

File 'ucminf/libs/x64/ucminf.dll':
  Found non-API call to R: 'Rf_findVarInFrame'

Compiled code should not call non-API entry points in R.

See 'Writing portable packages' in the 'Writing R Extensions' manual,
and section 'Moving into C API compliance' for issues with the use of
non-API entry points.

NOTE 13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 16, 2026

NOTE r-devel-linux-x86_64-debian-gcc

compiled code

File ‘ucminf/libs/ucminf.so’:
  Found non-API call to R: ‘Rf_findVarInFrame’

Compiled code should not call non-API entry points in R.

See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
and section ‘Moving into C API compliance’ for issues with the use of
non-API entry points.

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (29)

depends

Benchmarking mvord orloca

imports

MixSemiRob SPreg TwoTimeScales ei eicm misclassGLM optimg optimizeR ordgam ordinal phenofit sfaR trajeR vcrpart xreg2

suggests

INLAvaan ROI.plugin.optimx apsimx cxr flexFitR mclogit metafor mets optimx projpred ucminfcpp

Dependency Network

Version History

19 tracked

updated 1.2.3 ← 1.2.2 diff Apr 2, 2026

new 1.2.2 Mar 10, 2026

updated 1.2.2 ← 1.2.1 diff Jun 23, 2024

updated 1.2.1 ← 1.2.0 diff Dec 12, 2023

updated 1.2.0 ← 1.1-4.3 diff May 28, 2023

updated 1.1-4.3 ← 1.1-4.2 diff May 17, 2023

updated 1.1-4.2 ← 1.1-4.1 diff May 9, 2023

updated 1.1-4.1 ← 1.1-4 diff Sep 28, 2022

updated 1.1-4 ← 1.1-3 diff Aug 17, 2016

updated 1.1-3 ← 1.1-2 diff Jan 6, 2012

updated 1.1-2 ← 1.1-1 diff Jun 1, 2011

updated 1.1-1 ← 1.1-0 diff May 17, 2011

updated 1.1-0 ← 1.0-5 diff Apr 2, 2011

updated 1.0-5 ← 1.0-4 diff Mar 10, 2009

updated 1.0-4 ← 1.0-3 diff Mar 2, 2009