seqmon

2.5

Group Sequential Design Class for Clinical Trials

0packages depend

2.4Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Hui ZhengFirst published 2004-05-267 releasesCRAN page ↗

S4 class object for creating and managing group sequential designs. It calculates the efficacy and futility boundaries at each look. It allows modifying the design and tracking the design update history.

Install

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

install.packages("seqmon", 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-seqmon

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-seqmon

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-seqmon

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

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

Slowest check: 1.9 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

None

Vignettes

README

Dependencies · direct

Check history

NOTE2026-06-08
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-07
11 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.4K

CRAN downloads in the past year

Rank #20,407 · ~6/day · ~196/mo

Releases R versions

Daily download trend is not available in this view yet.

23830 days

58590 days

2.4K1 year

Compare downloads with other packages →

Also on105 r2u23 autocran52 c2d4u

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

Depends (1)

methods

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

roxygen2

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

Rd 842 (55%)R 682 (45%)

Code characteristics

Object systems

S4 class1S4 generic15S4 method15

Cyclomatic complexity: 2.0 median / 5 max

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

6 0 exported

Complexity

2.7 avg / 5 max

Call network

6 nodes / 3 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (0)

Author records are not tracked yet for this package.

Release timeline

7 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
2.5Latest
2024-05-18 · current release · diff ↗
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
2.4
2020-09-04 · diff ↗
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
2.3
2019-03-06 · diff ↗
2.2
2018-11-09 · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
2.1
2016-10-12 · diff ↗
R
R 3.3.0 released · 2016-05-03

Show 22 earlier events

R
R 3.2.0 released · 2015-04-16
R
R 3.1.0 released · 2014-04-10
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R 3.0.0 released · 2013-04-03
0.2
2012-10-29 · diff ↗
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R 2.15.0 released · 2012-03-30
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R 2.14.0 released · 2011-10-31
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R 2.13.0 released · 2011-04-13
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R 2.12.0 released · 2010-10-15
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R 2.11.0 released · 2010-04-22
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R 2.10.0 released · 2009-10-26
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R 2.9.0 released · 2009-04-17
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R 2.8.0 released · 2008-10-20
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R 2.7.0 released · 2008-04-22
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R 2.6.0 released · 2007-10-03
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R 2.5.0 released · 2007-04-24
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R 2.4.0 released · 2006-10-03
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R 2.3.0 released · 2006-04-24
R
R 2.2.0 released · 2005-10-06
R
R 2.1.0 released · 2005-04-18
R
R 2.0.0 released · 2004-10-04
0.1
2004-05-26
R
R 1.9.0 released · 2004-04-12

Package metadata

First published: 2004-05-26
Total releases: 7 / 22 yrs
License: MIT + file LICENSE OSI
Download size: 11 KB
Installed size: not tracked yet
With dependencies: not tracked yet