Hi guys,
Anyone know any package or formula to calculate power for fixed sample size design?
Thanks!
This one?
https://besjournals.onlinelibrary.wiley.com/doi/full/10.1111/2041-210X.12504
The pwr package is often a good choice. See examples here:
pwr
https://cran.r-project.org/web/packages/pwr/vignettes/pwr-vignette.html
For an overview of what is available on a particular topic in R, a CRAN Task View is often helpful.
This one seems relevant to your question
https://cran.r-project.org/web/views/ClinicalTrials.html
A list of assorted Task Views can be found at
https://cran.r-project.org/web/views/
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