Counting Groups

Count values on each side of a threshold.

CountingGroups.scala

object Main {
  def main(args: Array[String]): Unit = {
    val threshold = 
    val values = List(1, 2, 3, 4, 5)
    var small = 0
    var large = 0

    for (value <- values) {
      if (value <= threshold) {
        small = small + 1
      } else {
        large = large + 1
      }
    }

    println("threshold=" + threshold)
    println("small=" + small)
    println("large=" + large)
  }
}

object Main {
  def main(args: Array[String]): Unit = {
    val threshold = 
    val values = List(1, 2, 3, 4, 5)
    var small = 0
    var large = 0

    for (value <- values) {
      if (value <= threshold) {
        small = small + 1
      } else {
        large = large + 1
      }
    }

    println("threshold=" + threshold)
    println("small=" + small)
    println("large=" + large)
  }
}

object Main {
  def main(args: Array[String]): Unit = {
    val threshold = 
    val values = List(1, 2, 3, 4, 5)
    var small = 0
    var large = 0

    for (value <- values) {
      if (value <= threshold) {
        small = small + 1
      } else {
        large = large + 1
      }
    }

    println("threshold=" + threshold)
    println("small=" + small)
    println("large=" + large)
  }
}

counting-groups Grouping can start with simple counters. Each loop pass updates the count for one group.