st: Adding confidence intervals to bar graphs

["Marlis Gonzalez Fernandez" <mgonzal5@jhmi.edu>]

I have group data and  would like to display it on a bar graph with the
confidence interval (error bars) displayed.  

The data is in 4 columns:  group, RR, LCL (lower confidence limit), UCL
(upper confidence limit).

Can this be done?

Thank you.
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