>From the J in 5 minutes thread, I'm starting to build my example In my example, I'm working with stock prices. One of the the outputs is a daily % change over the previous day
I want the code to be clean. Is there a cleaner way to express this, or would this be considered fine? I want to calculate % change of y over x Nums=.i.10 pctChange=:3 : '((}. y) % (}: y)) -1' pctChange Nums _ 1 0.5 0.333333 0.25 0.2 0.166667 0.142857 0.125 pctChange 4 5 3 0.25 _0.4 It seemed like I should have been able to do something with Insert, but I can't figure it out. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
