Nick,
by combine, I mean that my data is organized like this:
Month | Sales | Brand
1 | 25 | 1
2 | 13 | 1
3 | 19 | 1
4 | 23 | 1
1 | 21 | 2
2 | 17 | 2
3 | 19 | 2
4 | 26 | 2
1 | 11 | 3
2 | 19 | 3
3 | 19 | 3
4 | 28 | 3
What I want to do, is combine the values of sales when brand is equal
to 1 with the values when brand is equal to 2, creating a new brand,
with observations for each month. However, I want to keep the data
organized in the time periods.
Thanks,
Sean
On Oct 21, 2008, at 2:06 PM, Nick Cox wrote
What does "combine" mean? If it means add, then know that
gen z = x + y
is the way to add two variables to produce a third.
Nick
[email protected]
Sean Lunde
I am working with a set of panel data grouped by brand (the panel var)
and date (the time var). I want to combine the values of some of the
brand variables together,( e.g. combine the salesdollar value for
brand x with salesdollar value for brand y). All of the variables I
want to combine are numeric.
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