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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