This loops correctly over i, but in the data set the variable code takes the
values 96,137(1). I need to print out the code for reference only but it
does not change from the initial value if 96. What should I do to modify the
program? Can I write the "displayed" variables directly to an output file?
set more off
forvalues i=1/294{
		integ volume rtime if id==`i', gen(Sv)
		display  code  `i'  "   r(integral)
		drop Sv 
}
set more on
Many thanks,
Martyn
Youth Rugby: www.fullerians.demon.co.uk
"The difference between winners and losers is that winners tell the jokes
and the losers talk about the run of the ball." 
 
*
*   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/