Re: fakeit and random seed

On Mon, Mar 23, 2009 at 16:05 -0400, Maurice Leutenegger wrote:
> 
> I am wondering about the randomization properties of fakeit. As far as I 
> can tell, if I invoke fakeit with no argument, I will always get the 
> same "random" spectrum, unless I first use seed_random () to set the 
> random number generator. Does this sound right? 

Yes.

> Is it the expected behavior? 

Yes.  Starting with the same random seed makes debugging
easier.

> Is there a way to get variable random noise in fakeit (or
> otherwise) without explicitly setting the seed myself?
> 

You could use the current time to seed the random number
generator in your $HOME/.isisrc file:

  seed_random (_time);

This should give you a different random sequence every
time you start isis.

Thanks,
-John
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