Displaying 2 results from an estimated 2 matches for "mnhyper".
2000 Feb 24
1
fisher.test() in ctest or perhaps uniroot() (PR#455)
fisher.test(matrix(c(1,20,246,6873),2),hybrid=F)
Error in if (f(lower, ...) * f(upper, ...) >= 0) stop("f() values at end
points not of opposite sign") :
missing value where logical needed
Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list --
2009 Oct 16
1
How odds ratio is computed in fisher.test()?
I'm wondering how odds ratio is computed. I thought that it is
(n11/n12)/(n21/n22), but it is not what fisher.test() computes. Could
somebody let me know?
> n11=3
> n12=1
> n21=1
> n22=3
>
> n1_=n11+n12
> n2_=n21+n22
>
> n_1=n11+n21
> n_2=n12+n22
>
> x=rbind(c(n11,n12),c(n21,n22))
>
> threshold=dhyper(n11,n1_,n2_,n_1)
>