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re: st: egen and recode, from summary statistics, zero values [SEC:
From
Christopher Baum <[email protected]>
To
"[email protected]" <[email protected]>
Subject
re: st: egen and recode, from summary statistics, zero values [SEC:
Date
Sun, 31 Jul 2011 17:42:27 -0400
<>
Michelle said
The end outcome is that I need a variable that contains either the actual added sugar intake, or half the non-zero minimum value if the added sugar intake is 0.
+------------------+
| person ADD_SUG |
|------------------|
1. | 1 0 |
2. | 2 20 |
3. | 3 30 |
4. | 4 0 |
5. | 5 0 |
|------------------|
6. | 6 30 |
7. | 7 0 |
8. | 8 5 |
9. | 9 0 |
10. | 10 10 |
+------------------+
su ADD_SUG if ADD_SUG>0 & !mi(ADD_SUG), mean
g new_add_sugar = cond(ADD_SUG == 0, 0.5 * r(min), ADD_SUG)
+-----------------------------+
| person ADD_SUG new_ad~r |
|-----------------------------|
1. | 1 0 2.5 |
2. | 2 20 20 |
3. | 3 30 30 |
4. | 4 0 2.5 |
5. | 5 0 2.5 |
|-----------------------------|
6. | 6 30 30 |
7. | 7 0 2.5 |
8. | 8 5 5 |
9. | 9 0 2.5 |
10. | 10 10 10 |
+-----------------------------+
Kit Baum | Boston College Economics & DIW Berlin | http://ideas.repec.org/e/pba1.html
An Introduction to Stata Programming | http://www.stata-press.com/books/isp.html
An Introduction to Modern Econometrics Using Stata | http://www.stata-press.com/books/imeus.html
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