TrueSkillThroughTime

1.0.0

Skill Estimation Based on a Single Bayesian Network

0packages depend

2.4Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Gustavo LandfriedFirst published 2021-12-103 releasesCRAN page ↗GitHub ↗

Most estimators implemented by the video game industry cannot obtain reliable initial estimates nor guarantee comparability between distant estimates. TrueSkill Through Time solves all these problems by modeling the entire history of activities using a single Bayesian network allowing the information to propagate correctly throughout the system. This algorithm requires only a few iterations to converge, allowing millions of observations to be analyzed using any low-end computer. Landfried G, Mocskos E (2025). "TrueSkill Through Time: Reliable Initial Skill Estimates and Historical Comparability with Julia, Python, and R." <doi:10.18637/jss.v112.i06>. The core ideas implemented in this project were developed by Dangauthier P, Herbrich R, Minka T, Graepel T (2007). "Trueskill through time: Revisiting the history of chess.".

Install

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

install.packages("TrueSkillThroughTime")

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

pak::pak("glandfried/TrueSkillThroughTime.R")

Development version from glandfried/TrueSkillThroughTime.R. Requires the pak package.

Release

# one-time r2u setup for Ubuntu (noble)

curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash

# then install

sudo apt install r-cran-trueskillthroughtime

Fast Ubuntu binaries via r2u (no compilation). Run the setup once per machine.

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

sudo dnf copr enable iucar/cran

sudo dnf install R-CRAN-TrueSkillThroughTime

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

sudo zypper install R-TrueSkillThroughTime

RPMs auto-built from CRAN on openSUSE OBS.

Health

CRAN checks

13OK

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

README

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.4K

CRAN downloads in the past year

Rank #19,350 · ~7/day · ~200/mo

26230 days

61590 days

2.4K1 year

Also on92 r2u14 autocran

Source & community

GitHub ↗

Repository stars, issues, and contributor activity are not tracked yet.

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (3)

hash methods basestats base

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Reverse dependencies

0direct

–indirect (not tracked)

Nothing depends on this yet.

Code

1,427Lines of code

11Exported functions

Code & tests

Open call graph →

Code intelligence has not been computed for this package yet.

People & History

People (1)

Maintainer (1)

Gustavo Landfried

Author, Maintainer

Release timeline

3 releases. Pick two to compare their code metrics; R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.0.0Latest
2025-04-06 · current release
R
R 4.4.0 released · 2024-04-24
0.1.1
2023-04-26 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.1.0
2021-12-10

Package metadata

First published: 2021-12-10
Total releases: 3 / 5 yrs
License: GPL (>= 3) OSI
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet