[R] Power analysis for 1-sample Binomial

[Bernardo Rangel Tura]

Hi R Masters!


I will make a populational survey in my hospital.  
Using the program I calculated the sample size for disease proportion in population.
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pop<-2400
p<-.2
d<-.05
alpha<-.05
z<-qnorm(1-alpha/2)
n<-z^2*(p*(1-p))/d^2
sample<-n/(1+(n/pop))
sample
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Well, do I know the sample size for this study, but is it possible to do an power analysis for this study using the R?

Thanks in advance

Bernardo Rangel Tura, MD, MSc
National Institute of Cardiology Laranjeiras
Rio de Janeiro Brazil