Copying one cross section

[startz]

I'm sure this is obvious, but I've forgotten how to do it. I have a panel organized as countries by years. I want to create a new variable that is country i GDP in year t minus US GDP in year t. How do I that?

[EViews Gareth]

Probably easier ways to do it, but this works:

Code: Select all

series gdpidx = gdp - @meansby(gdp, @date, "if country=""USA""")

[startz]

diolch