Hi all!

I hope you can guide me in the following question. In te following dataset:

id Ya Yb id_2
1-1 .6249384 .7929984 1-1
1-1 . . 1-2
1-1 . . 2-1
1-2 . . 1-1
1-2 .6531338 .5850651 1-2
1-2 . . 2-1
2-1 . . 1-1
2-1 . . 1-2
2-1 .8717756 .890541 2-1

How can I replace the value of Ya for id == 1,1, for all observations that meet id == 1,1?
and so also for Yb, but with the variable id_2?

The goal is to get the following dataset:

id Ya Yb id_2
1-1 .6249384 .7929984 1-1
1-1 .6249384 .5850651 1-2
1-1 .6249384 .890541 2-1
1-2 .6531338 .7929984 1-1
1-2 .6531338 .5850651 1-2
1-2 .6531338 .890541 2-1
2-1 .8717756 .7929984 1-1
2-1 .8717756 .5850651 1-2
2-1 .8717756 .890541 2-1

Thank you very much in advance.

Greetings,