. bysort district party: gen partycount=_n==1
. bysort district: gen noParties=sum(partycount)
. drop partycount
there is most probably also a one-liner, but i hope this works as well.
jonathan
[email protected] wrote:
Hi all, I have a coding question. I have individual-level data (candidates)
nested in aggregate-level units (electoral districts). I am attempting to
create a variable that indicates that number of different parties (not the
number of candidates, but the number of political parties present) present in
an electoral district.
For example in District A: I have five candidates from 3 different parties.
I need advice on how to generate this variable. I have tried the egen var=
count() method after sorting on the district. This does not work. Any advice.
Thanks Gina Branton
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