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survSampleSize  

Sample Size Calculator for Survival Endpoint Clinical Trials
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("survSampleSize", "0.1.2")



Attach the package and use:
library("survSampleSize")
Maintained by
Huai Jiang
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-06-20
Latest Update: 2026-06-21
Description:
An interactive 'shiny' application for sample size and power calculation under general conditions for clinical trials with survival endpoints. Implements the weighted log-rank method of Lu (2021) <doi:10.1002/pst.2069> via the 'lrstat' package, supporting non-proportional hazards, delayed treatment effects, unequal allocation and dropout, as well as the classic method of Freedman (1982) <doi:10.1002/sim.4780010204> via the 'powerSurvEpi' package. Results are presented interactively with survival curves and event-prediction timelines.
How to cite:
Huai Jiang (2026). survSampleSize: Sample Size Calculator for Survival Endpoint Clinical Trials. R package version 0.1.2, https://cran.r-project.org/web/packages/survSampleSize. Accessed 26 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:10), 0.1.1 (2026-06-20 16:00)
Other packages that cited survSampleSize R package
View survSampleSize citation profile
Other R packages that survSampleSize depends, imports, suggests or enhances
Complete documentation for survSampleSize
Functions, R codes and Examples using the survSampleSize R package
Full survSampleSize package functions and examples
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