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st: Improve matching
From
"Seliger Florian" <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: Improve matching
Date
Fri, 17 May 2013 15:20:29 +0000
Dear Statalist,
I want to improve matching of two datasets. I use a matching software, but want to prepare the datasets with STATA.
One dataset is in panel structure, i.e. I have multiple observations per ID:
ID firm
314 POLYTYPE
314 POLYTYPE MASCHINENFABRIK
314 POLYTYPE NA
314 POLYTYPE
314 POLYTYPE
314 POLYTYPE
The length of the firm name may vary across IDs.
I noticed that it is necessary to keep only the ID with the LONGEST NAME, in this case "POLYTYPE MASCHINENFABRIK".
It is necessary to delete all other IDs for the same observation to enable a proper matching (due to the software).
Any suggestions how I could only keep the LONGEST NAME IDs (each observation has different names, and within each observation each ID has different names, there is no regularity) in STATA?
Thank you for your consideration.
Best,
Florian
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