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Re: st: Using a while loop to compare rows and delete them?
From
[email protected] (Brendan Halpin)
To
[email protected]
Subject
Re: st: Using a while loop to compare rows and delete them?
Date
Wed, 20 Jun 2012 17:18:46 +0100
I suspect it would be a lot more efficient to avoid using while, and
just work with variables. For instance, you could in a first pass define
a "situation" variable for all cases, and then process that in a second
pass.
If the logic of your code involves dropping cases before later defining
the "situation", perhaps you need to identify and drop these cases in a
prior pass.
I'm thinking in terms of working like this:
. gen situation = 0
. replace situation = 1 if begepi[`i']!=begepi[`j'] | id[`i']!=id[`j']
. replace situation = 2 if status[`i']==5 & status[`j']==5 & benefit[`i']==1 ///
& situation == 0
and so on.
Brendan
--
Brendan Halpin, Department of Sociology, University of Limerick, Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147
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http://teaching.sociology.ul.ie/bhalpin/wordpress twitter:@ULSociology
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