Hi -
I have data from a propensity score match that has duplicate ids in it (data set A),
because it was with replacement. However, now I am interested in merging
data set A with an unbalanced panel data set (data set B). So, neither data set has
a unique identifier.
Is joinby the correct command to ensure that each person (duplicated ids are
assumed to be "different" people in my post-match world) has the correct number
of observations?
One way I considered doing this was going wide with dataset B (making id unique)
and merging (1:m) with dataset A, but this is annoyingly cumbersome with a lot of
time periods and numerous variables of interest.
Any help would be most appreciated!
Thanks,
Ben
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
