R help - Jun 2016 - Power Calculation:2-sided exact equivalence test for Binomial Proportions

Dear R-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 help me by providing the R code for the similar calculation ?
Thank you.

MJ

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MJ:  I think the EnvStats package has various power functions for binomial
applications (also confidence interval half-widths).
Brian

Brian S. Cade, PhD

U. S. Geological Survey
Fort Collins Science Center
2150 Centre Ave., Bldg. C
Fort Collins, CO  80526-8818

email:  cadeb at usgs.gov <brian_cade at usgs.gov>
tel:  970 226-9326


On Tue, Jun 7, 2016 at 10:26 AM, Munjal Patel <munjalpatel85 at gmail.com>
wrote:
> Dear R-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 help me by providing the R code for the similar calculation ?
> Thank you.
>
> MJ
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
	[[alternative HTML version deleted]]

Please search before posting, and if your search fails to get what you
want, tell us why.

I got what appeared to be many relevant hits  on rseek.org using the search term
"binomial exact power computations" .


-- Bert


Bert Gunter

"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Tue, Jun 7, 2016 at 9:26 AM, Munjal  Patel <munjalpatel85 at gmail.com>
wrote:
> Dear R-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 help me by providing the R code for the similar calculation ?
> Thank you.
>
> MJ
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

Em Ter 7 jun. 2016, ?s 13:26, Munjal Patel escreveu:
> Dear R-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.
> 
I'm not a statistician, and I have never hear of power calculation using
exact test. On the other hand, with hundreds of observations on each
group, does it matter? Maybe you could simply use power.prop.test(),
from the loaded-by-default package "stats".

Of course, you could look for packages about proportions or binomial in
CRAN, or set up a simulation.

Hope that helps,

Leonardo Ferreira Fontenelle, MD, MPH

PhD candidate, Federal University of Pelotas
Professor of Medicine, Vila Velha University
Legislative consultant, Municipal Chamber of Vit?ria

Hi again,
In fact the pwr package do not provide exact test power. So you should
definitely use g*power.
Sincerely,
Adrien.

      De?: Munjal Patel <munjalpatel85 at gmail.com>
 ??: r-help at r-project.org 
 Envoy? le : Mardi 7 juin 2016 18h26
 Objet?: [R] Power Calculation:2-sided exact equivalence test for Binomial
Proportions
   
Dear R-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 help me by providing the R code for the similar calculation ?
Thank you.

MJ

??? [[alternative HTML version deleted]]

______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


  
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