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Re: st: Compare values from two datasets

From   Richard Goldstein <[email protected]>
To   [email protected]
Subject   Re: st: Compare values from two datasets
Date   Wed, 16 Jan 2008 13:57:07 -0500

rename one of the variables so they have the same name in each file; sort each file by that variable and then use the -merge- command


Gao Liu wrote:

Hi, Statalist:

I have two datasets A and B. I need to create a dummy variable in A to
tell me whether the value of a string variable (say lic_no ) in A
matches any value in the variable of psycho_lic_no in B. Simply put, I
want to see whether the value for each obs. in A is on a list. But as
the list (the value of psycho_lic_no in B) is so long (over 10000), it
is inconvenient to copy and paste all the values, and compare them
with the lic_no one by one.

Any good way to make the job easier? Thank you.


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