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st: diving values of a column with other values of the same column
From
Tzaloupas Dimitrov <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: diving values of a column with other values of the same column
Date
Tue, 5 Feb 2013 21:34:32 +0000 (GMT)
Dear all,
I have the following excel file which I import into Stata
Country overall specific dates values
DD gg 0 01/11/2001 5
DD gg 0 01/12/2001 2
DD gg 0 01/01/2001 3
DD gg zz 01/11/2001 15
DD gg zz 01/12/2001 12
DD gg zz 01/01/2001 13
EE gg 0 01/11/2001 0.5
EE gg 0 01/12/2001 0.2
EE gg 0 01/01/2001 0.3
EE gg zz 01/11/2001 25
EE gg zz 01/12/2001 122
EE gg zz 01/01/2001 2 3
For each country separately(DD and EE) I would like to divide the values that correspond to specific==zz by the values that correspond to speciffic==0
For example, for DD I want to divide the vector of values (15 12 13) that corresponds to specific==zz by the vector (5 2 3) that corresponds to specific==0; so as to construct a new vector of values=(15/5 12/2 13/3)
Similarly for the other country EE
I use Stata 11 and actually I have 200 countries.
I assume that a loop is needed but this task is way ahead of my capabilities.
If you can provide a specific code, I would be greatful
Regards,
tzaloupas
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