>From Phrases, section 10 Maths & Stats: d17=: +/ .* % [EMAIL PROTECTED] NB.Mean of x weighted by y
I would expect: d17revision1=:+/ .* % +/@] NB.Mean of x weighted by y or d17revision2=:+/@* % +/@] NB.Mean of x weighted by y Do I misunderstand the intent of the formula? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
