I have a sequence of Seq[(1,0),(2,0),(2,0),(1,1),(1,1),(2,1)]
I would like to modify it to Seq[(1,2,2),(1,1,2)]
grouped by the second value
of each map in the array.
I have tried .groupBy(_._2)
but it doesn't work. It gives me
value _2 is not a member of scala.collection.immutable.Array[(Int,Int)]
Any ideas?
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