Raphael,
Try
gen cumfreq=sum(etime)
- RY
Robert A. Yaffee, Ph.D.
Research Professor
Shirley M. Ehrenkranz
School of Social Work
New York University
home address:
Apt 19-W
2100 Linwood Ave.
Fort Lee, NJ
07024-3171
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[email protected]
----- Original Message -----
From: Raphael Fraser <[email protected]>
Date: Thursday, May 11, 2006 1:31 pm
Subject: st: Computing a cumulative frequency variable
> I have the following variables and would like to generate or compute
> the cumulative frequency of etime. The end result should look like
> this:
>
> id etime cum. freq
> 15 0 0
> 15 6 6
> 15 2 8
> 20 10 10
> 20 30 40
> 20 4 44
>
> Raphael
>
> *
> * For searches and help try:
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> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
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* http://www.ats.ucla.edu/stat/stata/
