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speff2trial  

Semiparametric Efficient Estimation for a Two-Sample Treatment Effect
View on CRAN: Click here


Download and install speff2trial package within the R console
Install from CRAN:
install.packages("speff2trial")

Install from Github:
library("remotes")
install_github("cran/speff2trial")

Install by package version:
library("remotes")
install_version("speff2trial", "1.0.5")



Attach the package and use:
library("speff2trial")
Maintained by
Michal Juraska
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2009-07-02
Latest Update: 2022-05-31
Description:
Performs estimation and testing of the treatment effect in a 2-group randomized clinical trial with a quantitative, dichotomous, or right-censored time-to-event endpoint. The method improves efficiency by leveraging baseline predictors of the endpoint. The inverse probability weighting technique of Robins, Rotnitzky, and Zhao (JASA, 1994) is used to provide unbiased estimation when the endpoint is missing at random.
How to cite:
Michal Juraska (2009). speff2trial: Semiparametric Efficient Estimation for a Two-Sample Treatment Effect. R package version 1.0.5, https://cran.r-project.org/web/packages/speff2trial. Accessed 15 Jul. 2026.
Previous versions and publish date:
(2026-07-09 07:08), 1.0.0 (2009-07-02 08:52), 1.0.1 (2009-11-09 16:40), 1.0.2 (2009-12-15 13:33), 1.0.3 (2010-02-11 09:45), 1.0.4 (2012-10-30 20:58)
Other packages that cited speff2trial R package
View speff2trial citation profile
Other R packages that speff2trial depends, imports, suggests or enhances
Complete documentation for speff2trial
Functions, R codes and Examples using the speff2trial R package
Some associated functions: ACTG175 . modSearch . speff . speffSurv . summaryspeff . summaryspeffSurv . 
Some associated R codes: modSearch.R . print.summary.speff.R . print.summary.speffSurv.R . speff.R . speffSurv.R . summary.speff.R . summary.speffSurv.R .  Full speff2trial package functions and examples
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