[R] Confidence interval for difference in Harrell's c statistics (or equivalently Somers' D statistics)

[David Winsemius]

On May 5, 2011, at 8:20 AM, Laura Bonnett wrote:

> Dear All,
>
> I am trying to calculate a 95% confidence interval for the  
> difference in two
> c statistics (or equivalently D statistics).  In Stata I gather that  
> this
> can be done using the lincom command.  Is there anything similar in R?

Have you looked at rcorrp.cens {Hmisc}?

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-- 
David Winsemius, MD
West Hartford, CT