st: lags for xi created vars

[Ed Blackburne <blackburne@shsu.edu>]

I have created a set of vars using xi command that has resulted in 
_IstXab_1 _IstXab_2, etc.

The following reference to the varlist works:

regress y _IstXab*

However, I cannot use lag or difference operators:

regress y l._IstXab*

results in error of:

_IstXab* ambiguous abbreviation

Is there anyway to get around this?

Thanks,

Ed



Edward F. Blackburne
Associate Professor
Economics and International Business
Sam Houston State University
blackburne@shsu.edu
936-294-3934
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/