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rmass2  

Repeated Measures with Attrition: Sample Sizes and Power Levels for 2 Groups
View on CRAN: Click here


Download and install rmass2 package within the R console
Install from CRAN:
install.packages("rmass2")

Install from Github:
library("remotes")
install_github("cran/rmass2")

Install by package version:
library("remotes")
install_version("rmass2", "0.0.0.2")



Attach the package and use:
library("rmass2")
Maintained by
Soumya Sahu
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2023-08-21
Latest Update: 2023-09-20
Description:
For the calculation of sample size or power in a two-group repeated measures design, accounting for attrition and accommodating a variety of correlation structures for the repeated measures; details of the method can be found in the scientific paper: Donald Hedeker, Robert D. Gibbons, Christine Waternaux (1999) .
How to cite:
Soumya Sahu (2023). rmass2: Repeated Measures with Attrition: Sample Sizes and Power Levels for 2 Groups. R package version 0.0.0.2, https://cran.r-project.org/web/packages/rmass2. Accessed 04 Aug. 2026.
Previous versions and publish date:
(2026-07-09 06:52), 0.0.0.1 (2023-08-21 15:50)
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Complete documentation for rmass2
Functions, R codes and Examples using the rmass2 R package
Some associated functions: rmass2 . 
Some associated R codes: functions.R . rmass2.R .  Full rmass2 package functions and examples
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Maintainer: Yi Liu (view profile)

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