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This package has an overdue CRAN deadline (Oct 19) to fix its check problems; archival is imminent. See the check details
mlrMBO needs mlr, which CRAN will archive unless its check problems are fixed by Oct 26.

mlrMBO

1.1.6Package record

Bayesian Optimization and Model-Based Optimization of Expensive Black-Box Functions

3packages dependsuggested by 5
75Kdownloads / year
79.2%test coverage
13/13flavors OK

Overview

About

Flexible and comprehensive R toolbox for model-based optimization ('MBO'), also known as Bayesian optimization. It implements the Efficient Global Optimization Algorithm and is designed for both single- and multi- objective optimization with mixed continuous, categorical and conditional parameters. The machine learning toolbox 'mlr' provide dozens of regression learners to model the performance of the target algorithm with respect to the parameter settings. It provides many different infill criteria to guide the search process. Additional features include multi-point batch proposal, parallel execution as well as visualization and sophisticated logging mechanisms, which is especially useful for teaching and understanding of algorithm behavior. 'mlrMBO' is implemented in a modular fashion, such that single components can be easily replaced or adapted by the user for specific use cases.

Changes in 1.1.6
  • Documentation fixes

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 8.9 min · r-oldrel-macos-x86_64
Status changes
  • OK13 OK2026-10-15
  • ERROR12 OK, 1 ERROR2026-09-13
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK14 OK2026-03-10
Advisories

none known

Documentation

In release 1.1.6
READMEYes · 327 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 1.1.6Citation fileYes · software entry only
Help pages
38
Examples that run
67%2 run in a plain check · 1 never run
Exported functions with examples
8%
Documented parameters
97%
Return-value docs
85%
Help pages citing references
5%

Downloads

75K
CRAN downloads in the past year
Rank #1,544 · ~205/day · ~6.2K/mo
Daily download trend is not available in this view yet.
4.5K30 days
15.4K90 days
75K1 year
Compare downloads with other packages →
Also on899 r2u9 autocran5.7K conda_forge157 c2d4u

Repository

187Stars
48Forks
82Open issues
14Open PRs
2Releases
1,656Commits
23Commit identities
model-based-optimizationrr-packageoptimizationmlrhyperparameter-optimizationblack-box-optimizationbayesian-optimization
1,656 commits · Last activity 2026-03-01 · 0% stars, 30d
Responsiveness
How these are sampled
PRs merged (all time)
93%
Median days to close, 50 most recently updated closed issues
7
Median days to close, 50 most recently updated closed PRs
1

Stars over time

2025-04-12 · 1862026-08-24 · 187
PracticesBeta

10 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/mlr-org/mlrmbo on 2026-10-11.

Continuous integration (1)
tic
Governance and community (3)
Contributing guide (inherited from mlr-org)

Funding links: GitHub Sponsors

The repository owner accepts GitHub Sponsors

Docs source (3)
README.Rmdpkgdown

GitHub Pages site last deployed 2022-10-09

Coverage (1)
Coverage reporting (Codecov)
Show all practicesHide 1 practice
Lint, format, editor (2)
EditorConfigRStudio project
How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies
29 external dependencies (excludes base and recommended)

Installing mlrMBO adds 31 packages (20 with compiled code, 38 MB of source tarballs). Heaviest: stringi 11 MB, ggplot2 6.0 MB, data.table 5.7 MB.

LinkingTo (0)
none
Enhances (0)
none
Dependencies facing archival

CRAN will archive these unless their check problems are fixed by the date shown. This package needs each one to install.

  • mlrfix by Oct 26
Reverse dependencies
3direct
1indirect
Depends 1 · Imports 2
Suggested by 5
Depends, Imports or LinkingTo, most downloaded first
Suggests, most downloaded first

People & History

People (7)
Maintainer since 1.1.6 (2026) · added in 1.1.6

Previously maintained by Jakob Richter (1.0.0 to 1.1.5.1).

Releases (9)

Pick two releases to compare their code metrics.

  • R
    R 4.6.0 released · 2026-04-24
  • 1.1.6Latest
    record
    2026-03-01 · current release · diff ↗
  • R
    R 4.5.0 released · 2025-04-11
  • R
    R 4.4.0 released · 2024-04-24
  • R
    R 4.3.0 released · 2023-04-21
  • 1.1.5.1
    record
    2022-07-04 · diff ↗
  • R
    R 4.2.0 released · 2022-04-22
  • R
    R 4.1.0 released · 2021-05-18
  • 1.1.5
    record
    2020-10-23 · diff ↗
  • R
    R 4.0.0 released · 2020-04-24
  • 1.1.4
    record
    2020-02-28 · diff ↗
  • 1.1.3
    record
    2019-12-02 · diff ↗
  • R
    R 3.6.0 released · 2019-04-26
  • 1.1.2
    record
    2018-06-21 · diff ↗ ·
    added 1 export
    makeMBOInfillCritAdaCB
  • R
    R 3.5.0 released · 2018-04-23
  • 1.1.1
    record
    2018-01-03 · diff ↗ ·
    added 4 exports
    finalizeSMBO, initSMBO, proposePoints, updateSMBO
Show 4 earlier eventsHide 4 earlier events
  • 1.1.0
    record
    2017-05-13 · diff ↗
  • R
    R 3.4.0 released · 2017-04-21
  • 1.0.0
    record
    2017-03-12
  • R
    R 3.3.0 released · 2016-05-03

Package metadata

First published
2017-03-12
Total releases
9 / 9 yrs
License
BSD_2_clause + file LICENSE OSI
Download size
676 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("mlrMBO")

The package provides a citation file, so citation() returns the authors' own entry.

Cite the R Observatory

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

APA

Balamuta, J. J. (2026). R Observatory: Metrics for mlrMBO version 1.1.6 [Data set]. HJJB, LLC. Data release v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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