Null vector would be more consistent. On Tue, Jan 27, 2009 at 3:01 PM, Roger Hui <[email protected]> wrote:
> x=: 3 5 $ 5 7 2 9 1 6 5 2 0 5 4 7 2 2 5 > > Use one of the following depending on your needs: > > <@I. 5 = x > +-+---+-+ > |0|1 4|4| > +-+---+-+ > > x i."1 ]5 > 0 1 4 > > > > ----- Original Message ----- > From: David Vincent-Jones <[email protected]> > Date: Tuesday, January 27, 2009 11:57 > Subject: [Jprogramming] Indices Question > To: JSoftware <[email protected]> > > > I am looking for the exact location of the first specific value (5) > > found in each row > > > > I. 5 = 3 5 $ 5 7 2 9 > > 1 6 5 2 0 5 4 7 2 2 5 > > 0 0 > > 1 4 > > 4 0 > > > > The result for line one is ambiguous .. it can appear that no > > items were > > found or col. 1 should be used. > > > > How should I make this less ambiguous? > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Use Reply-To: & thread your email after the first: or it may take a while, as I get 2000+ emails per day. -- Roy A. Crabtree UNC '76 gaa.lifer# 11086 703-318-2106 (msgs only, use my name) (mail, residence) Roy A. Crabtree 3322 Wheeler Road SE Oak Hill Apartments #T-4 Washington, DC 20032-4166 (secondary mail) Roy A. Crabtree USPS POB 58097 Washington, DC 20034-8097 [When you hear/read/see/feel what a y*ehudi plays/writes/sculpts/holds] [(n)either violinist {Menuhin} (n)or writer {"The Y*ehudi Principle"} (n)or molder (n)or older] [you must strive/think/look/sense all of it, or you will miss the meanings of it all] [email protected] Forwards only to: [email protected] [email protected] CC: auto to ^ http://musings-roy-crabtree.blogspot.com [& others] http://www.authorsden.com/royacrabtree http://skyscraper.fortunecity.com/activex/720/resume/full.doc -- (c) RAC/IP, ARE,PRO,PAST (Copyright) Roy Andrew Crabtree/In Perpetuity All Rights/Reserved Explicitly Public Reuse Only Profits Always Safe Traded ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
