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st: mark spell


From   Jörg Eulenberger <j.eulenberger@web.de>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: mark spell
Date   Mon, 14 Feb 2011 14:40:46 +0100

Dear Statalisters,
I have a problem to mark out the spells with includes the Date 2004m11(538). The Dataset shows like this:

id    xb   xe    xt
01    2004m9    2005m12    a
02    2004m7    2004m9    c
02    2004m10    2004m10    c
02    2004m11    2005m7    b
02    2005m8    2005m12    b
05    2004m6    2004m8    c
05    2004m9    2005m12    b
07    2004m7    2004m7    c
07    2004m8    2004m10    b
07    2004m11    2004m12    c
07    2005m1    2005m8    a
07    2005m9    2005m9    c
07    2005m10    2005m12    b
08    2004m9    2005m12    b

Any help would be very much appreciated. Thanks
Jörg

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