Hi,
I have a dataset with three column like this
x1 x2 Count
1 0 523
1 0 23
0 0 2
0 1 45
0 0 3
1 1 433
I need to create a loop so that when c(x1,x2)=c(1,1), I can add the
corresponding Counts.When c(x1,x2)=c(1,0), can add the corresponding counts and
so on. Can anyone help me????
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