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etsi: Efficient Testing Using Surrogate Information

Provides functions for treatment effect estimation, hypothesis testing, and future study design for settings where the surrogate is used in place of the primary outcome for individuals for whom the surrogate is valid, and the primary outcome is purposefully measured in the remaining patients. More details are available in: Knowlton, R., Parast, L. (2024) “Efficient Testing Using Surrogate Information," Biometrical Journal, 67(6): e70086, <doi:10.1002/bimj.70086>. A tutorial for this package can be found at <https://www.laylaparast.com/etsi>.

Version: 1.0
Imports: hetsurr, stats
Published: 2025-11-06
DOI: 10.32614/CRAN.package.etsi
Author: Rebecca Knowlton [aut], Layla Parast [aut, cre]
Maintainer: Layla Parast <parast at austin.utexas.edu>
License: GPL-2 | GPL-3 [expanded from: GPL]
NeedsCompilation: no
CRAN checks: etsi results

Documentation:

Reference manual: etsi.html , etsi.pdf

Downloads:

Package source: etsi_1.0.tar.gz
Windows binaries: r-devel: etsi_1.0.zip, r-release: etsi_1.0.zip, r-oldrel: etsi_1.0.zip
macOS binaries: r-release (arm64): etsi_1.0.tgz, r-oldrel (arm64): etsi_1.0.tgz, r-release (x86_64): etsi_1.0.tgz, r-oldrel (x86_64): etsi_1.0.tgz

Linking:

Please use the canonical form https://CRAN.R-project.org/package=etsi to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.