I'm sure this is an easier task than I'm making it out
to be but I'm trying to create a cumulative tally of a
binary variable. To illustrate, my data set has the
variable 'X' and I'd like to create the 'sumX'
variable:
'X' 'sumX'
0 0
1 1
1 2
1 3
0 3
1 4
I've tried writing a simple macro but can't get the
thing to work. Any suggestions?
Thanks,
Jon Schwabish
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