Re: odd behaviour in rule delayed

*To*: mathgroup at smc.vnet.net*Subject*: [mg21509] Re: [mg21499] odd behaviour in rule delayed*From*: "David Park" <djmp at earthlink.net>*Date*: Fri, 14 Jan 2000 02:43:28 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

Francisco, I think your main problem is that you have to insert a space between the /. and the 1. The point got bound to to 1 and the / became a divide operation. kk = 0; newlist = {1, 0, 1, 0, 0, 1} /. 1 :> ++kk {1, 0, 2, 0, 0, 3} David Park djmp at earthlink.net http://home.earthlink.net/~djmp/ >I have M 4.0, window 95. >I have a list of 0's and 1's, and I want the one's to perform a consecutive >numeration. For example, transform {1,0,1,0,0,1} into {1,0,2,0,0,3}. > >The easiest (and most elegant, I think) way to do it is with a counter and >rule delayed: >list={1,0,1,0,0,1} >kk=0; newlist={1,0,1,0,0,1} /.1:>++k > >However, the answer I get from this operation is completely >odd:{10.,0,10.,0,0,10.}:>++k. I closed my session and re-started my >computer, but I keep getting the same stuff. I don't understand what is >happening. By the way, this problem didn't appear in M3.0. > >Can somebody help me? > >Francisco Gutierrez > > >