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st: Unbalanced panel, count number of incidents
Hello. I have an unbalanced panel of subjects who have been contacted very
irregularly over the past 5 years. Total contacts range from 40-250 during
the 5 year period depending on the person. I'd like to create two
variables: one that counts the total number of contacts in the last 30 or 60
days and a second that sums the number of positive responses over the same
30 or 60 days. For each contact there could be anywhere from 0-15 contacts
in the last 30 days.
My data looks like:
ID Date Response Var1 Var2
1 37200 1 1 1
1 37210 0 2 1
1 37215 1 3 2
1 37229 1 4 3
1 37231 0 4 2
2 37201 0 1 0
.....
I can't make egen count() work for me (or really anything else).
Thanks in advance,
Andy
-----------------------------------
Andrew Stocking
University of Maryland
Ag and Resource Economics
[email protected]
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