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cosa  

Bound Constrained Optimal Sample Size Allocation
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("cosa", "2.1.0")



Attach the package and use:
library("cosa")
Maintained by
Metin Bulus
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2018-02-06
Latest Update: 2021-11-20
Description:
Implements bound constrained optimal sample size allocation (BCOSSA) framework described in Bulus & Dong (2021) for power analysis of multilevel regression discontinuity designs (MRDDs) and multilevel randomized trials (MRTs) with continuous outcomes. Minimum detectable effect size (MDES) and power computations for MRDDs allow polynomial functional form specification for the score variable (with or without interaction with the treatment indicator). See Bulus (2021) .
How to cite:
Metin Bulus (2018). cosa: Bound Constrained Optimal Sample Size Allocation. R package version 2.1.0, https://cran.r-project.org/web/packages/cosa. Accessed 08 Oct. 2026.
Previous versions and publish date:
(2026-07-09 07:28), 1.0.0 (2018-02-06 11:27), 1.1.0 (2018-03-01 15:43), 1.2.0 (2018-04-04 15:54), 1.2.1 (2018-12-16 19:40), 1.2.2 (2019-05-09 10:30), 2.0.0 (2019-08-24 18:00)
Other packages that cited cosa R package
View cosa citation profile
Other R packages that cosa depends, imports, suggests or enhances
Complete documentation for cosa
Functions, R codes and Examples using the cosa R package
Some associated functions: bcrd3r2 . bcrd4r2 . bcrd4r3 . bird2r1 . bird3r1 . bird4r1 . cosa-deprecated . cosa-package . crd2r2 . crd3r3 . crd4r4 . inspect . ird1r1 . moments . plots . vectorize . 
Some associated R codes: bcrd3f2.R . bcrd3r2.R . bcrd4f3.R . bcrd4r2.R . bcrd4r3.R . bird2f1.R . bird2r1.R . bird3r1.R . bird4r1.R . crd2r2.R . crd3r3.R . crd4r4.R . errors.R . ird1r1.R . methods.R . moments.R . plots.R . utils.R . vectorize.R .  Full cosa package functions and examples
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