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st: nearmrg for strings (titles)


From   michih <michaela.hoecher@edu.uni-graz.at>
To   statalist@hsphsun2.harvard.edu
Subject   st: nearmrg for strings (titles)
Date   Tue, 30 Aug 2011 00:31:03 -0700 (PDT)

Hello!
 

I would like to merge two datasets (variables: title, date, publisher). 
The problems is, that strings (tiltes of a book), that are not absolutely
the same sould be merged/matched. 

- Does it make sense to use nearmrg for this?

- In which way are strings merged/matched? 

- What would you recommend me?

 

- I wanted to test nearmrg, but I got an error message "type mismatch":


string_masterfile.dta

+---------------------------------------+ 
| id      name        gender       age 
|---------------------------------------
| 5       franzi           1             23  
| 1       meli             1             32  
| 2       michaela      1             20  
| 6       ali                2             25 
| 3       christ           2             20  
| 4       martin         2             44  
+---------------------------------------+


string_matchfile2.dta

+--------------------------------------+ 
| id      name        gender       age  
|---------------------------------------
| 5       franzi          1             13  
| 1       michi          1             15  
| 2       susi            1             22  
| 4       ali              2             25  
| 3       chris           2             20  
| 5       felix            2            43  
+-------------------------------------+



When I use the command: 

      nearmrg gender using string_matchfile2.dta, nearvar(name) lower
genmatch(samename) 
or 

      nearmrg gender using string_matchfile2.dta, nearvar(name) lower force
genmatch(samename)
 

I geht the error message: "type mismatch"

 

Thanks a lot!!! Michi


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