Re: st: RE: RE: Data management

["Roy,Suryadipta" <suryadipta.roy@lawrence.edu>]

Hi,

I am sorry that the dataset that I wanted to create was 
accidentally sent before. I am trying to create the last 
two columns, where

tsum for id 1 for year 2000=sum(tvol for all for 
year=2000),
tshare1= tvol/tsum, and tshare2=tvol/(tsum-tvol).

Thanking you all for your cooperation (not least my econ 
colleagues:) for their generous support).

Best regards,
Suryadipta.
*
*   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/