Hello,

I am quite new to stata so sorry if this has been answered before, but I could not find it via search!

I want to drop entries in my data set that are not from a specific country. So for example "keep if country == AT" (witthout the "") to make stata drop all Non Austrian entries. However, I cannot get stata to do this command. Neither by putting "" or '' around the AT will change that. I have tested the keep if X == Y with other numeric variables and it works as it should. How do I get it to work with non-numeric variables then?