R Observatory: Metrics for RcppTrust version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

RcppTrust

0.1.0Package record

Thread-Safe C++ Port of the 'trust' Trust Region Optimizer

1packages depend

2Kdownloads / year

77.2%test coverage

13/13flavors OK

Overview

About

Maintained by Matthew FidlerCRAN page ↗GitHub ↗Website ↗

Does local optimization using two derivatives and trust regions. Guaranteed to converge to a local minimum of the objective function. This is a thread-safe C++ port of the algorithm in the 'trust' package by Charles J. Geyer, exposed both as a drop-in R function and as a C-callable, thread-safe entry point (with function pointers registered for other packages to call without linking against this package's shared library) so it can be used from parallel C++ code such as in 'nlmixr2est'.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("RcppTrust", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("nlmixr2/RcppTrust")

Development version from nlmixr2/RcppTrust. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-rcpptrust

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-RcppTrust

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-RcppTrust

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 3.9 min · r-devel-windows-x86_64

Status changes

OK13 OKNow
OK4 OK2026-09-08

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.0

READMEYes · 234 wordsVignettesYes · 1 · evaluation depends on the environmentNEWSNoCitation fileNoWebsiteYes · pkgdown

Help pages: 2
Examples that run: no examples
Exported functions with examples: 0%
Documented parameters: 91%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (1)

RcppTrust: A Thread-Safe C++ Trust Region Optimizer HTML

How these are measured

Downloads

2K

CRAN downloads in the past year

Rank #4,418 · ~5/day · ~163/mo

Releases R versions

Daily download trend is not available in this view yet.

1.2K30 days

2K90 days

2K1 year

Compare downloads with other packages →

Also on84 r2u2 autocran

How downloads are counted

Repository

nlmixr2/rcpptrust ↗Organization: nlmixr2

0Stars

0Forks

0Open issues

0Open PRs

1Releases

24Commits

1Commit identities

optimizationtrust

24 commits · Last activity 2026-10-23 · Default branch at 0.2.0, ahead of CRAN 0.1.0 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 4

Releases over time

2026-09-07 · 02026-09-08 · 1

How these are measured

PracticesBeta

8 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/nlmixr2/rcpptrust on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-09-17 · The repository has a site deploy workflow

Coverage (1)

Coverage reporting

CRAN release process (1)

cran-comments.md

How this is detected·Detection ruleset v4 (2026-10-20)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-10-14
Pull request it wrote: opened by a project member

How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Installing RcppTrust adds 3 packages (2 with compiled code, 17 MB of source tarballs). Heaviest: BH 14 MB, Rcpp 1.8 MB, RcppArmadillo 1.0 MB.

Depends (1)

R >= 4.2.0

Imports (1)

Rcpp

LinkingTo (3)

Rcpp RcppArmadillo BH

Suggests (6)

testthatstatsknitr rmarkdown trust microbenchmark

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

14indirect

Imports 1 · LinkingTo 1

Depends, Imports or LinkingTo, most downloaded first

nlmixr2est

How these are counted

Code & Tests

People & History

People (2)

Matthew Fidler

Author, Maintainer since 0.1.0 (2026)

Charles J. Geyer

Author

Listed in earlier versions (1)

Geyer

no longer listed · 0.1.0

Releases (1)

Submitted 0.2.0, in inspect since 2026-10-23 19:40 UTC, as of the 2026-10-25 16:57 UTC queue snapshot. See the queue →

0.1.0Latest
record
2026-09-07 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-09-07
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.2.0
Download size: 150 KB

Appears in task views

Optimization and Mathematical Programming

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("RcppTrust")

Format

Fidler, M., & Geyer, C. J. (2026). RcppTrust: Thread-Safe C++ Port of the 'trust' Trust Region Optimizer (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.RcppTrust

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for RcppTrust version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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