Logical operation using generate

[Edison Jr]

I have a database with three variables: 27 states, 10 years and a GDP for each year. I want to generate a variable with the resulting logical operation: if year=2017, then GDP*2 & if year=2018, then GDP*7 & if year=2019, then GDP*15, and so on.
How can I do that, please?

[Clyde Schechter]

Duplicate post. Asked and answered at https://www.statalist.org/forums/for...-with-generate.