willf · July 17, 2013 14:30 · willf · Jul 17, 2013
diff --git a/findMonotonicityBreaks.scala b/findMonotonicityBreaks.scala
 def countMonotonicityBreaks(items: Seq[Int]): Int = 
  items.sliding(2). // two items at a time
  filter(p => p.size == 2 && p(0) != p(1)). // remove any equalities
  map{p => p(1).compare(p(0))}. // get -1 and 1 values; must have 2 values
  sliding(2). // take *these* two at a time
  count(p => p.size == 2 && p(0) != p(1)) // count when the differ
	def countMonotonicityBreaks(items: Seq[Int]): Int =
	items.sliding(2). // two items at a time
	filter(p => p.size == 2 && p(0) != p(1)). // remove any equalities
	map{p => p(1).compare(p(0))}. // get -1 and 1 values; must have 2 values
	sliding(2). // take these two at a time
	count(p => p.size == 2 && p(0) != p(1)) // count when the differ