P.S. According to stata's help, the details of the author of the
-prod()- function is:
Philip Ryan
Department of Public Health
University of Adelaide
South Australia
pryan@medicine.adelaide.edu.au
On Sun, Dec 9, 2012 at 10:53 PM, Yuval Arbel <yuval.arbel@gmail.com> wrote:
> Dear Statalisters,
>
> I appreciate very much your assistance in the following question:,
>
> I'm looking for an equivalent function for -gen y1=sum()- which will
> calculate running product for each point in time
>
> In fact, what I would like to calculate is a running geometric mean
>
> Note also that -gen y2=prod()- does not work (i.e., stata does not
> identify the function). Only -egen y2=prod()- works, but it generates
> only one product for each panel, and this is not what I need.
>
> Finally, I tried the -amean- command,, but it simply gives summary
> statistics of different means, and it is not a function..
> --
> Dr. Yuval Arbel
> School of Business
> Carmel Academic Center
> 4 Shaar Palmer Street,
> Haifa 33031, Israel
> e-mail1: yuval.arbel@carmel.ac.il
> e-mail2: yuval.arbel@gmail.com
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/faqs/resources/statalist-faq/
> * http://www.ats.ucla.edu/stat/stata/
--
Dr. Yuval Arbel
School of Business
Carmel Academic Center
4 Shaar Palmer Street,
Haifa 33031, Israel
e-mail1: yuval.arbel@carmel.ac.il
e-mail2: yuval.arbel@gmail.com
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/faqs/resources/statalist-faq/
* http://www.ats.ucla.edu/stat/stata/
