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qif  

Quadratic Inference Function
View on CRAN: Click here


Download and install qif package within the R console
Install from CRAN:
install.packages("qif")

Install from Github:
library("remotes")
install_github("cran/qif")

Install by package version:
library("remotes")
install_version("qif", "1.5")



Attach the package and use:
library("qif")
Maintained by
Michael Kleinsasser
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2019-07-20
Latest Update: 2019-07-20
Description:
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) .
How to cite:
Michael Kleinsasser (2019). qif: Quadratic Inference Function. R package version 1.5, https://cran.r-project.org/web/packages/qif. Accessed 04 Jun. 2026.
Previous versions and publish date:
No previous versions
Other packages that cited qif R package
View qif citation profile
Other R packages that qif depends, imports, suggests or enhances
Complete documentation for qif
Functions, R codes and Examples using the qif R package
Some associated functions: epil . exacerb . print.qif . print.summary.qif . qif . summary.qif . 
Some associated R codes: data.R .  Full qif package functions and examples
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