[pymvpa] Tip of the day: MVPA_SEED

[Per B. Sederberg]

Yes, but why does it give rise to drastically different results with
smiley faces?  :)

P

At Fri, 20 Jun 2008 13:12:40 +0200,
Michael Hanke wrote:
> 
> On Fri, Jun 20, 2008 at 07:05:07AM -0400, Per B. Sederberg wrote:
> > What does this MVPA_SEED mean?
> This set the seed for the random number generation from an env variable.
> 
> http://pkg-exppsy.alioth.debian.org/pymvpa/misc.html?highlight=seed#random-number-generation
> 
> 
> Cheers,
> 
> Michael
> 
> 
> > P
> > 
> > At Fri, 20 Jun 2008 07:22:33 +0200,
> > Michael Hanke wrote:
> > > 
> > > 
> > > On Thu, Jun 19, 2008 at 07:35:30PM -0400, Yaroslav Halchenko wrote:
> > > > If you like to have full unittests battery be done in a fast manner --
> > > > run with magic seed 14, e.g.
> > > > 
> > > > MVPA_SEED=14 make unittest
> > > > 
> > > > if you like to run for coffee and come back to enjoy the final message
> > > > being printed on the screen run with seed 4. With 14 it takes 45sec on
> > > > my box (without -O) and with 4, it takes nearly 20 times longer --
> > > > 739.933s
> > > > 
> > > > What is your favorite seed? :-)
> > > ;-)
> > > 
> > > Try 1978 to see one of the performance unit tests fail -- it is too
> > > random ;-)
> > > 
> > > 
> > > Cheers,
> > > 
> > > Michael
> > > 
> > > -- 
> > > GPG key:  1024D/3144BE0F Michael Hanke
> > > http://apsy.gse.uni-magdeburg.de/hanke
> > > ICQ: 48230050
> > > 
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> -- 
> GPG key:  1024D/3144BE0F Michael Hanke
> http://apsy.gse.uni-magdeburg.de/hanke
> ICQ: 48230050
> 
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