R Observatory: Metrics for longsurr version 1.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

longsurr

1.1

Longitudinal Surrogate Marker Analysis

0packages depend

2.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Layla ParastFirst published 2022-09-292 releasesCRAN page ↗

Assess the proportion of treatment effect explained by a longitudinal surrogate marker as described in Agniel D and Parast L (2021) doi:10.1111/biom.13310; and estimate the treatment effect on a longitudinal surrogate marker as described in Wang et al. (2025) doi:10.1093/biomtc/ujaf104. A tutorial for this package can be found at https://www.laylaparast.com/longsurr.

Install

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

install.packages("longsurr", 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-longsurr

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-longsurr

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-longsurr

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

Health

CRAN checks

13OK

Slowest check: 3.5 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

25

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 97%
Return-value docs: 100%
References docs: 38%

Downloads

2.8K

CRAN downloads in the past year

Rank #16,783 · ~8/day · ~236/mo

Releases R versions

Daily download trend is not available in this view yet.

16430 days

63590 days

2.8K1 year

Compare downloads with other packages →

Also on127 r2u16 autocran

Dependencies

Declared dependencies

19 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (25)

stringrsplinesmgcvRsurrogate dplyr here tidyr fsKernSmoothstatsfdapace grf lme4 mvnfast plyr tibble magrittr glue purrr readr refund fda fda.uscsurvivalMASS

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Layla Parast

Author, Maintainer

Authors (3)

Layla Parast

Author, Maintainer

Denis Agniel

Author

Xuan Wang

Author · added in 1.1

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.1Latest
2025-11-09 · 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
1.0
2022-09-29
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-09-29
Total releases: 2 / 4 yrs
License: GPL
Minimum R: ≥ 3.5.0
Bundled data: 114 KB / 2 files
Download size: 125 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("longsurr")

Format

Parast, L., Agniel, D., & Wang, X. (2025). longsurr: Longitudinal Surrogate Marker Analysis (Version 1.1) [Computer software]. https://doi.org/10.32614/CRAN.package.longsurr

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 longsurr version 1.1 [Data set]. HJJB, LLC. Data release v2026-08-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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