creating an mutinomial variable

[Corine EL Habr]

Hello,
I am trying to establish a multinomial logit model in stata.
I have a panel of 60 countries, whith 24 observations per country.
I have a variable CC that takes the values 0 and 1, and I want to create a variable S such:
S returns 1 if CC[_n+1]==1
S returns 2 as long as CC remains ==1 after CC[_n+1]==1 // per country (so per the 24 observations)
S returns 0 otherwise.

I know the basic generate S, and replace S but I am not sure how to write the code for "S to return 2"

Thank youu

Corine El Habr

[Phil Bromiley]

xtset your data. Then you can use lag operators (L. L2. etc) in your conditions.