I just realized I used Ric's midpoint instead of your mean. That's odd. midpt2=:[: -: [: <: #
Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Linda Alvord Sent: Tuesday, March 12, 2013 12:20 PMhat To: programm...@jsoftware.com Subject: Re: [Jprogramming] Find the median F leaves out # and <: and seems to work: medianRM 8 1 6 7 6.5 f=: 13 :' -:+/ ((<.,>.) midpt2 y){/:~ y' f 8 1 6 7 6.5 medianRM ([: ([: ([: (<. , >.) -:) <:) #) ([: mean {) /:~ f [: -: [: +/ ([: (<. , >.) midpt2) { /:~ Am I missing something? Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Linda Alvord Sent: Tuesday, March 12, 2013 5:45 AM To: programm...@jsoftware.com Subject: Re: [Jprogramming] Find the median Raul, This didn't lead anywhere new either: mean=: +/ % # medianRM=:([: ([: ([: (<. , >.) -:) <:) #) ([: mean {) /:~ medianRM 8 1 6 7 6.5 medianRM ([: ([: ([: (<. , >.) -:) <:) #) ([: mean {) /:~ Linda -----Original Message----- From: programming-boun...@forums.jsoftware.com [mailto:programming-boun...@forums.jsoftware.com] On Behalf Of Raul Miller Sent: Sunday, March 10, 2013 8:49 PM To: programm...@jsoftware.com Subject: Re: [Jprogramming] Find the median On Sun, Mar 10, 2013 at 6:29 PM, km <k...@math.uh.edu> wrote: > The median of list 1 2 2 4 6 is 2 ("middle" value of sorted list), > the median of 2 2 4 6 is 3 (average of two "middle" values). Write a verb to find the median of a sorted list of numbers. Here's one implementation of this definition of median: mean=: +/ % # median=: (<.,>.)@-:@<:@# mean@:{ /:~ -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
