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
>
>
>