Panel data id issue

[Bjornar Sand]

I’m having a problem with id of my groups.
I am using Stata 14 for Windows.
I have collected several flight ticket prices regarding departure for several route within the country and out. The problem with this is that I cant find a method to tell STATA that a route from london -oslo with departure 23.4 is within the same group as london- Oslo with departure 5.4. My main time variable is days till departure, and as a result this time variable is observed several times. This results in "repeated time values within panel". How can I come around this?

I other words. I want stata to see that ticketprices regarding routes are within the same ID, because of comparising.

Hopefully I have expressed myself good enough for someone to understand. Fairly new to STATA and this kind of statistics.

[Bjornar Sand]

Maybe I can use a overall id based on date departure and route? If that makes sense

[Carlo Lazzaro]

Bjornar.
an overall id might be worth trying.
For the future, please post your queries on the General forum, as this one is conceived fior practicing purposes only. Thanks.