Can I use for-comprehenion / yield to create a map in Scala?

Question

Can I \"yield\" into a Map?

I\'ve tried

val rndTrans = for (s1 <- 0 to nStates;
                    s2 <- 0 to nStates
                            


        

Answer 1

val rndTrans = (
  for {
    s1 <- 0 to nStates
    s2 <- 0 to nStates if rnd.nextDouble() < trans_probability
  } yield s1 -> s2
  ) (collection.breakOut[Any, (Int, Int), Map[Int, Int]])