Merging data

[Gabi Costa]

Hello,

I am trying to merge UKHLS data (which have identifier numbers) to petrol prices (which do not have identifier numbers). I have the petrol prices by year and month, and I have included the variables year and month in my UKHLS data - would anyone know any code that will allow me to merge my petrol prices to my original data set?

Best,
Gabi

[Andrew Musau]

You need to show a sample of both datasets using dataex as recommended in FAQ Advice #12. But it will be something like

use "UKHLS.dta", clear
merge m:1 year month using "petrol.dta"