[R] prop.trend.test

[Michael Dewey]

Dear Thomas

Are you looking for more than

smokers / patients

Michael

On 07/09/2023 14:23, Thomas Subia via R-help wrote:
> 
> Colleagues
> 
>   Consider
> smokers  <- c( 83, 90, 129, 70 )
> patients <- c( 86, 93, 136, 82 )
> 
>   prop.trend.test(smokers, patients)
> 
>   Output:
> 
>       Chi-squared Test for Trend inProportions
> 
>   data:  smokers out of patients ,
> 
> using scores: 1 2 3 4
> 
> X-squared = 8.2249, df = 1, p-value = 0.004132
> 
>   # trend test for proportions indicates proportions aretrending.
> 
>   How does one identify the direction of trending?
>   # prop.test indicates that the proportions are unequal but doeslittle to indicate trend direction.
> All the best,
> Thomas Subia
> 
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help using 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.
> 

-- 
Michael
http://www.dewey.myzen.co.uk/home.html