On Wed, Oct 7, 2009 at 3:49 PM, Michael McCulloch <[email protected]> wrote:
> Thanks Scott. Is the code in the second line of the loop, beginning
> with -gen- specific to Stata11?
> At that line my Stata10 returns "unrecognized command: generate
> invalid command name"
> Michael
>
> sysuse auto, clear
> levelsof price if fore ==1 ,local(levels)
> foreach l of local levels {
> gen group_`l' = 1 if price > `l' -200 & price < `l' + 200 &
> fore == 0
> }
> sort price
> l fore make price if group_4296 ==1
>
No - there is nothing specific to Stata 11. Perhaps -set trace on-
will point out the problem.
Below is the output from the example:
. sysuse auto, clear
(1978 Automobile Data)
. levelsof price if fore ==1 ,local(levels)
3748 3798 3895 3995 4296 4499 4589 4697 5079 5397 5719 5799 5899 6229
6295 6850 7140 8129 9690 9735 11995 12990
. foreach l of local levels {
2. qui gen group_`l' = 1 if price > `l' -200 & price < `l' +
200 & fore == 0
3. }
. sort price
. l fore make price if group_4296 ==1
+----------------------------------+
| foreign make price |
|----------------------------------|
15. | Domestic AMC Concord 4,099 |
16. | Domestic Pont. Sunbird 4,172 |
17. | Domestic Olds Omega 4,181 |
18. | Domestic Ford Mustang 4,187 |
19. | Domestic Olds Starfire 4,195 |
|----------------------------------|
21. | Domestic Ford Fiesta 4,389 |
22. | Domestic Pont. Phoenix 4,424 |
23. | Domestic Plym. Champ 4,425 |
24. | Domestic Buick Opel 4,453 |
25. | Domestic Plym. Horizon 4,482 |
+----------------------------------+
Scott
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