How to duplicate a line

[trich12]

Hi I have data in groups by specific dates and would like to duplicate the last line of observations for each group.  For example, the first group has 10 observations for a certain date, and I would like the 11th line to be an exact duplicate of the 10th line.  And I would like to do this for every group.  Thank you for your help!

[Reeza]

proc sort data=have; by group date; run;

data want;

set have;

by group;

if last.group then output;

output;

run;