st: how to drop groups of variables at one time

[Suzy <scott_788@wowway.com>]

Dear Statlisters,
I have stata v.8.2 intercooled. I created an interaction term using a 
continuous predictor variable*3 category predictor variable. I then 
included  the term into a logistic regression model. I received output 
that essentially stated I had no more room. My matsize was at the limit 
of 800 and I had set my memory to 100m and all my variables were 
compressed. I now want to drop the dummy variables that I created using 
the xi: and i. function. I have many of them and want to know an easy 
command to drop many variables at once. I tried drop 
i.variable/i.variable, but that doesn't work. However, if there is a way 
for me to add more space than what I've already done, that would be 
preferable.
Thanks for any suggestions on this.
Suzy

*
*   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/