Since you are talking about seeds, I suppose
you are referring to the bult-in random generator of NS.

You could use the built-in commands for the
random generator concerning the change of seed.
Say that your random generator variable is

set randGen [new RNG]

then to change the seed for the randomGen object you can use

$randGen seed <n>, where <n> is the new seed.

Or you can also use the next-substream command that changes
the substream from where random numbers are returned:

$randGen next-substream

Many more commands concerning the behavior of the random generator
can be found in the NS Manual, in the chapter 23: "Mathematical Support".

Hope that helped.

Regards,

-Fk

On 4/26/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
>
>
> ---------- Forwarded message ----------
> From: malin nadine <[EMAIL PROTECTED]>
> To: [email protected]
> Date: Wed, 26 Apr 2006 13:09:19 +0200 (CEST)
> Subject: [ns] How to change seed in NS2
> Hello every one
>
>   I have used these commands to change the seed in
> ns-2:
>
>   set val(seed) 0.0
>
>
>   but when I run the same simulation many times, I got
> the same
> sesults.
>
>
>   is there any help
>
>   Thanks in advence
>
>   Nadine
>
>
>
>
>


--
Filippos N Kolovos

Software Systems Analyst & Engineer
M.Sc. (Eng.) in Data Communications

Automation & Networking Department
University of Macedonia Library
Egnatia 156, P.O.Box 1591
540 06 Thessaloniki, Greece

E-Mail: [EMAIL PROTECTED],
           [EMAIL PROTECTED]
----------------------------------------------

Reply via email to