Re: st: Alternative to -collapse-?

[Jeph Herrin <stata@spandrel.net>]

I think you want to look at -bysort- and -egen-. For example

 bysort id : egen v4=total(v3)

will generate your variable.

On 7/23/2013 9:10 AM, Lukas Borkowski wrote:
> Dear list,
>
> I am using Stata 12 and currently clean up a dataset that will become a panel dataset. The quality of the dataset is quite poor (originates from a survey) and I face multiple (endless) situations where values to the same questions are recorded in different variables. The tricky situations that I need to sum these values across rows and columns on a household level. The structure looks somewhat like this simplified example:
>
> id	v1	v2	v3
> 1	.	.	2
> 1	.	7	.
> 1	9	.	.
> 2	4	.	1
> 2	.	7	.
> 2	7	.	.
> ...
>
> I would like to generate a variable v4 that sums v3 on a household level. I currently use -collapse (sum) v3, by(id)- but this is obviously a real pain as I would have to merge all the resulting micro datasets.
>
> Do you have any suggestion what I could do?
>
> Thank you very much for your help!
>
> Best,
>
> Lukas
>
> #
> Lukas Borkowski
> University of London, School of Oriental and African Studies (SOAS)
>
>
>
>
>
> *
> *   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/
*
*   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/