[R] Power Calculation: Binomial Proportions (2 sided exact test for equivalence)

BONACHE Adrien adriens_cachan at yahoo.fr
Wed Jun 8 08:54:45 CEST 2016


Dear Munjal,
You should use the pwr package with the following code :library(pwr)
# lower
pwr.2p.test(h =ES.h(0.3, 0.2), n = 500, sig.level = 0.05, power = NULL, alternative = c("two.sided"))#upperpwr.2p.test(h =ES.h(0.3, 0.4), n = 500, sig.level = 0.05, power = NULL, alternative = c("two.sided"))
Maybe you could use G*power :Lower case 1-beta = 0.9557076Upper one 1-beta= 0.9134817
Hope this help,
Adrien Bonache.

      De : Munjal Patel <munjalpatel85 at gmail.com>
 À : r-help at r-project.org 
 Envoyé le : Mardi 7 juin 2016 18h08
 Objet : [R] Power Calculation: Binomial Proportions (2 sided exact test for equivalence)
   
Dear R-Sig-teaching users,
I am an intermediate level R user.

I am performing the power calculations for the Binomial proportions (2
sided).
I want to find the Power using the Exact test for the Equivalence of
Binomial proportions.
I do have the SAS code which is generating the Power for me but i am unable
to find the Similar code in R.
I need help for finding the similar computation in R.

My SAS code.

proc power;
onesamplefreq test = equiv_exact
alpha = 0.05
proportion = 0.30
lower = 0.2
upper = 0.4
ntotal = 500
power = .;
run;

Can somebody helkp me by providing the R code for the similar calculation ?
Thank you.

MJ

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