Re: [chuck-users] random seed

11 Sep 2010

      Hi Stefan,

I like to use a seed in many tasks, specialy for sequencing.

Maybe this example helps you to understand what I mean:

Std.srand(1200); //set your seed
int SeedArray[8];

//fill your array with random numbers
fun void CalcRndArray()
{
     for(int i; i < SeedArray.cap(); i++)
     {
         Std.rand2( 1 , 1000 )=>SeedArray[i];
     }
} CalcRndArray();

while (1)
{
     for(int i; i < SeedArray.cap(); i++)
     {
         <<>>;
     }
     <<<"--------------", "we always get the same numbers" >>>;
     2::second=>now;

}

// image reading your arrays randomly, but with a repeating structure.

// if you want another structure, just change the seed. in that case  
the seed will be your pattern

// and if you don't want a structure, leave the seed or change it with  
a function.

Hope this helps!

Lars

Am 11.09.2010 um 15:46 schrieb Stefan Blixt:
...
This thread has made me thoroughly confused. I see that you have  
solved your issue, Lars, but I would still like to know what your  
task was. :) I feel it might be good for inspiration.
In my world of computer science, if you use a random generator,  
pretend that you've never heard the word "seed", and just start  
reading random numbers, you will effectively get non repeatable  
structures, different every time.
/Stefan
2010/9/11 Kassen 
On 11 September 2010 15:31, Lars Ullrich  wrote:
 Hi Kas,
Hey, Lars!
I was looking for a message to turn off the seed. Something like  
"set seed to 0" and get non repeatable structures. (like maxmsp  
object lp.tata from peter castine )
The default situation should be getting a initial seed from the host  
OS when the VM starts. That seed should be unknown to you, but it's  
still a seed. There really is no way to "turn off the seed" with  
PRNG's. Sorry; it's not my fault ;¬).
Anyway, I have found a method to do this with some functions.
Thanks a lot for your patience.
No problem, that's what the list is for,
Yours,
Kas.
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