qif

1.5

Quadratic Inference Function

1packages depend

2.3Kdownloads / year

–test coverage

0/13checks pass

Overview

About

Maintained by Michael KleinsasserFirst published 2019-07-201 releasesCRAN page ↗GitHub ↗

Developed to perform the estimation and inference for regression coefficient parameters in longitudinal marginal models using the method of quadratic inference functions. Like generalized estimating equations, this method is also a quasi-likelihood inference method. It has been showed that the method gives consistent estimators of the regression coefficients even if the correlation structure is misspecified, and it is more efficient than GEE when the correlation structure is misspecified. Based on Qu, A., Lindsay, B.G. and Li, B. (2000) <doi:10.1093/biomet/87.4.823>.

Install

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

install.packages("qif")

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

pak::pak("umich-biostatistics/qif")

Development version from umich-biostatistics/qif. 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-qif

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-qif

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

sudo zypper install R-qif

RPMs auto-built from CRAN on openSUSE OBS.

Health

CRAN checks

13NOTE

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64
NOTE r-oldrel-macos-arm64
NOTE r-oldrel-macos-x86_64
NOTE r-oldrel-windows-x86_64
NOTE r-patched-linux-x86_64
NOTE r-release-linux-x86_64
NOTE r-release-macos-arm64
NOTE r-release-macos-x86_64
NOTE r-release-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

Yes

README

Dependencies · direct

Check history

NOTE2026-03-10
0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

2.3K

CRAN downloads in the past year

Rank #18,907 · ~6/day · ~189/mo

25930 days

62790 days

2.3K1 year

Also on423 r2u8 autocran

Source & community

GitHub ↗

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (1)

MASS base

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Reverse dependencies

1direct

–indirect (not tracked)

vsmi

Code

1,239Lines of code

1Exported functions

Code & tests

Open call graph →

Line coverage

–

Expression

–

Tests / Examples

–

Functions

6 1 exported

Complexity

14 avg / 49 max

Call network

6 nodes / 1 edges

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

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Lowest coverage

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

People & History

People (3)

Maintainer (1)

Michael Kleinsasser

Maintainer

Authors (2)

Zhichang Jiang

Author

Peter Song

Author

Release timeline

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

R
R 4.6.0 released · 2026-04-24
1.5Latest
2026-03-10 · current release

Package metadata

First published: 2019-07-20
Total releases: 1 / 7 yrs
License: GPL-2 OSI
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet