[R] Asymmetric CIs

Frank E Harrell Jr f.harrell at vanderbilt.edu
Tue Dec 2 20:06:34 CET 2008

Sarah E. McCormick wrote:
> Hi, I was wondering if there was some sort of package or function that calculated asymmetric confidence intervals for small proportions.  I thought of both the epicalc and epitools package, but I am hoping to find something where you can just plug in a standard error and point estimate and it will output the upper and lower CI bounds.
> Thanks!
> Sarah

If you want asymmetric CLs (a good idea) you can't base them on standard 
errors.  See the binconf function in the Hmisc package for some solutions.


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Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University

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