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Re: st: Comparing strings
From
Eric Booth <[email protected]>
To
[email protected]
Subject
Re: st: Comparing strings
Date
Sat, 24 Mar 2012 17:47:09 -0500
<>
Take a look at the string function (-help string_functions-) indexnot() (e.g., "gen x = indexnot(string1, string2)" ) which will give you the leftmost position where the two strings differ.
This Stata string function does not assign the positive/negative sign like the sas function you describe, but you can code those yourself by using other string functions to find how they differ in order/sequence/length.
- Eric
__
Eric A. Booth
Public Policy Research Institute
Texas A&M University
[email protected]
+979.845.6754
On Mar 24, 2012, at 5:12 PM, jo la frite wrote:
> Dear Statalisters,
>
> Is there a Stata function that correspondons to the Sas function "COMPARE". It allows to compare strings. Specifically, in Sas COMPARE(string-1, string-2) returns a numeric value. The sign of the result is negative if string-1 precedes string-2 in a sort sequence, and positive if string-1 follows string-2 in a sort sequence. The magnitude of the result is equal to the position of the leftmost character at which the strings differ.
>
> Thanks!
>
> Jo
>
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