12 lines
260 B
Plaintext
12 lines
260 B
Plaintext
use individres
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drop if (res_edate != . & res_edate < $refdate)
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drop if (res_sdate != . & res_sdate > $refdate)
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gen refdate = $refdate
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keep individid locationid
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sort individid
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duplicates drop individid, force
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sort individid
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save cross\crossresidency, replace
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