R Observatory: Metrics for maxcombo version 1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

maxcombo

1.0Package record

The Group Sequential Max-Combo Test for Comparing Survival Curves

0packages depend

3.1Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Tom PriorCRAN page ↗

Functions for comparing survival curves using the max-combo test at a single timepoint or repeatedly at successive respective timepoints while controlling type I error (i.e., the group sequential setting), as published by Prior (2020) doi:10.1177/0962280220931560. The max-combo test is a generalization of the weighted log-rank test, which itself is a generalization of the log-rank test, which is a commonly used statistical test for comparing survival curves, e.g., during or after a clinical trial as part of an effort to determine if a new drug or therapy is more effective at delaying undesirable outcomes than an established drug or therapy or a placebo.

Install

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

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

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

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-maxcombo

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-maxcombo

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-maxcombo

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Tom Prior <tomjamesprior@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: person(given = "Tom",
                    family = "Prior",
                    role = c("aut", "cre"),
                    email = "tomjamesprior@gmail.com")
as necessary.

Found the following URLs which should use \doi (with the DOI name only):
  File ‘maxcombo-package.Rd’:
    https://doi.org/10.1177/0962280220931560

CRAN check page ↗

Slowest check: 1.1 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 5includes a package overview page
Examples that run: 0%4 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 82%
Return-value docs: 100%
Help pages citing references: 20%

How these are measured

Downloads

3.1K

CRAN downloads in the past year

Rank #13,728 · ~9/day · ~261/mo

Releases R versions

Daily download trend is not available in this view yet.

30730 days

84190 days

3.1K1 year

Compare downloads with other packages →

Also on92 r2u1 autocran73 c2d4u

How downloads are counted

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

Installing maxcombo adds 27 packages (17 with compiled code, 18 MB of source tarballs). Heaviest: data.table 5.7 MB, mcmc 1.5 MB, viridisLite 1.2 MB.

Depends (0)

none

Imports (8)

magrittr purrr rlang mstate MCMCpack dplyr mvtnormsurvival

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (1)

Tom Prior

Maintainer since 1.0 (2020)

Releases (1)

R
R 4.6.0 released · 2026-04-24
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
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
1.0Latest
record
2020-12-09 · current release
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-12-09
Total releases: 1 / 6 yrs
License: GPL-2 OSI
Download size: 27 KB

Appears in task views

Clinical Trial Design, Monitoring, Analysis and Reporting Survival Analysis

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("maxcombo")

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 maxcombo version 1.0 [Data set]. HJJB, LLC. Data release v2026-10-20. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-20, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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