[Jprogramming] Closest local minimums of data

[Miller, Raul D]

Here's a variant on Oleg's approach:
   ((#~ {~ [: <: +/\@])1,2>:/\]) d=: 10 7 5 6 7 1 9 8 2 4
10 7 5 5 5 1 1 8 2 2

-- 
Raul