st: Alternative to -collapse-?

[Lukas Borkowski <570722@soas.ac.uk>]

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)





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