Hi,

I'm trying to merge two dates variables from the same dataset, but I would like to prioritize one on the other:
considering date1 and date2
I would like to generate date3 = date1, except if date1 is missing, then replacing by date2

I tried :
gen date3 = date1
replace date3 = date2 if date 1 == "."

but I got a type mismatch message, even if my variables are all in numeric daily date (float)

I hope I'm clear and someone can help me,

Many thanks

El

Ps: Merry Christmas!