Karl Knoblick wrote:
Hallo!
Does anybody know how to calculate a sample size estimation for proportions
with continuity correction?
That would lose power.
Frank
I only found EpiR which seems to calculate without continuity correction:
library(epiR)
epi.studysize(treat = .65, control = .50, n = NA, sigma = NA,
power = 0.80, r = 1, conf.level = 0.95, sided.test = 2, method = "cohort")
$n
[1] 340
Thanks!
Karl
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.