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RE: st: RE: Adding cumulatively


From   "n.j.cox@durham.ac.uk" <n.j.cox@durham.ac.uk>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Adding cumulatively
Date   Fri, 16 May 2008 07:37:16 -0700

Not surprising, until one reads the help. Having it that way round means
that the totals are one step away.

bysort id (year) : gen cumvar1 = sum(var1)
by id: gen sumvar1 = cumvar1[_N]

If I had been present at the creation, I would have made a case for a
name like -cusum()-. But I turned up too late and a few thousand miles
(km) away.

Nick

Rijo John

Thanks. For some reason I though sum function will produce the same
total sum against all values.

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