[R] Extract index column the max

[MSousa]

Hello, I have this data.frame, and i need the value the column where the
value in matrix is maximum

res3     
      77 86 93 106 161
  77  20  0  0   1   0
  86   1 12  1   2   1
  93   0  2  3   3   0
  106  0  4  3  18   0
  161  0  0  0   1  55

  I use  this d<-which(res3==max(res3), arr.ind=T)
> d
    row col
161   5   5 

how do I return only the value 161
   Thanks


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