st: Making symmetry

["Alexander" <alex@markedsfakta.as>]

Dear Statalister,

I have 2 ID-variables:

Id1	Id2
1	1
2	3
3	5
4	.
5	.

And I want the variabels to be symmetric in relation to ID1

Like this:

Id1	Id2
1	1
2	.
3	3
4	.
5	5

Any suggestions would be greatly appreciated.

Best regards,
Alexander Severinsen


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