Scala: merge two arrays in one single structure

Question

I have two arrays:

val diceProbDist = new Array[Double](2 * DICE + 1)

and

val diceExpDist = new Array[Double](2 * DICE + 1)

and I want to merge in one single structure (some sort of tuple, maybe):

(0, 0.0, 0,0)(1, 0.0, 0.0)(2, 0.02778, 0.02878)...

where the first entry is the array index, the second entry is the first array value and the third entry is the second array value.

Is there some scala function to accomplish that (zip with map or something like that)?

thanks, ML

Answer 1

val diceProbDist = Array(0.1, 0.2, 0.3)
val diceExpDist = Array(0.11, 0.22, 0.33)

diceProbDist
 .zip(diceExpDist)
 .zipWithIndex
 .map { case ((v1, v2), i) => (i, v1, v2) }

// result: Array((0,0.1,0.11), (1,0.2,0.22), (2,0.3,0.33))