On Thu, 19 May 2016, David Feuer wrote:
You promised a collection of use cases. I seem to have missed it. Could you send the link again?
I found the following uses in my libraries: * mapAdjacent subtract differences between consecutive elements, inverse of cumulative sum (scanl (+) 0) * and . mapAdjacent (==) check whether all elements in a list are equal * and . mapAdjacent (<=) check whether elements are sorted * mapAdjacent (/=) . map signum find zero crossings * head . dropWhile (uncurry (/=)) . mapAdjacent (,) drop until convergence * mapAdjacent (\x y -> (snd x, fst y)) turn list of intervals into list of gaps * mapAdjacent (,) collect state transitions for a Hidden Markov model * product . mapAdjacent binomial . scanr1 (+) compute multinomial coefficient