search for: clopper

> > Hi All: > > I am using R to calculate exact 95% confidence interval using Clopper > Pearson method. I am using the following code but it seems to get into a > loop and not get out of it, it goes on forever although I am looping it > only 10 times across 63 sites with 10 observations per site. I was hoping > to get some help. > > Thanks > Anamika > set.se...

...product confidence procedure. Previously developed methods can have substantial error rate inflation for the lower limit, especially at the right end of the curves when there are small numbers of events. The bpcp method guarantees coverage when there is no censoring (when it reduces to the exact Clopper-Pearson intervals for binomial data at each time) or when there is progressive type II censoring. Simulations show at least nominal coverage for independent censoring. Also, it is fast so it can be used routinely. For a complete description of the new method see Fay, Brittain, and Proschan (20...