MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: problem with Delete[]


Delete doesn't change v

v={a,b,c,d,e};

Delete[v,3]

{a,b,d,e}

v

{a,b,c,d,e}

If you want v to change, use

v=Delete[v,3]

{a,b,d,e}

v

{a,b,d,e}


Bob Hanlon

> 
> From: Heath Gerhardt <heathgerhardt at hotmail.com>
To: mathgroup at smc.vnet.net
> Date: 2005/07/23 Sat AM 05:32:47 EDT
> Subject: [mg58925] [mg58917]  problem with Delete[]
> 
> Hello,
> 
> Delete[] is not removing elements of v in the following function, could 
> anyone tell me why?
> 
> Rn[N_, p_] := Module[{A, v, c, q, i, j},
>      A = Table[0, {i, 1, N}, {j, 1, N}];
>      v = Table[i, {i, 2, N}];
>      c = 1;
>      For[i = 1, i < N, i++,
>        j = Random[Integer, {1, Dimensions[v][[1]]}];
>        A[[c, v[[j]]]] = 1;
>        A[[v[[j]], c]] = 1;
>        q = Random[];
>        If[q > p, c = v[[j]]];
>        Delete[v, j];
>        ];
>      A
>      ]
> 
> thanks in advance,
> Heath
> 
> 


  • Prev by Date: Re: simple question about random
  • Next by Date: How to rotate frametick labels?
  • Previous by thread: Re: problem with Delete[]
  • Next by thread: Re: problem with Delete[]