--- On Fri, 17/9/10, Grace Jessie wrote:
> I encountered a loop problem.
> The commands I edited are as follwows.
>
> foreach j in a b c d {
> foreach i in e f g {
> if `j'==b {
> count
> }
> else {
> su
> }
> }
> }
>
> Sometimes the error was showed "b ambiguous
> abbreviation",sometimes the error was "type mismatch".
> What is wrong?
> In my mind, -foreach lname in- can be followed by
> any_list.
the problem is not with -foreach- but with the commands
inside your loop. Apperently the elements your are looping
over are not always unique variable names and sometimes
they are string variable where numeric variables where
expected or vice versa.
Hope this helps,
Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/