Re: Working in Modules
- To: mathgroup at smc.vnet.net
- Subject: [mg15923] Re: Working in Modules
- From: "Roger Wilson" <roger.wilson at nomura.co.uk>
- Date: Wed, 17 Feb 1999 23:33:56 -0500
- Organization: Nomura International PLC
- References: <7a2c0d$1ul@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Init doesn't return the list you think it should because you haven't reset
the value of s. You've done substitution s /. {0->-1} but this doesn't
change the value of s it just returns a list that you haven't put anywhere
and then returned Partition[s,n].
You need to do s=s/.{0->-1}; inside init 1 instead of just s/.{0->-1};
Roger
Dr D McK Paul wrote in message <7a2c0d$1ul at smc.vnet.net>...
>This is my third attempt to post this question. No idea why it doesnt
>work. I'm not an expert in Mathematica and would appreciate comments on
>why init1 returns a list with all zeros replaced by -1, but init does
>not. Its probably very simple but its confused me.
>
>Don
>
>init[n_Integer]:=Module[
> {s=Table[Random[Integer],{n n}]},
> s/.{0->-1};
> Partition[s,n]
> ]
>
>init1[n_Integer]:=Module[
> {s=Table[Random[Integer],{n n}]},
> s/.{0->-1}
> ]
>
>
>--
>