Dear all
I wanna get from
id dum1 dum2 dum3 dum4
1 1 0 0 0
1 0 1 0 0
1 0 0 0 1
2 0 1 0 0
2 0 0 1 0
3 1 0 0 0
3 0 1 0 0
3 0 0 1 0
3 0 0 0 1
4 0 1 0 0
5 1 0 0 0
5 0 0 1 0
to
id dum1 dum2 dum3 dum4
1 1 1 0 1
2 0 1 1 0
3 1 1 1 1
4 0 1 0 0
5 1 0 1 0
Does anyone have an idea?
Thanks!
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