We did have water and plain crackers available.
On 8/30/08, Björn Helgason <[EMAIL PROTECTED]> wrote:
>
> The wine you taste will always have a different taste depending on what you
> drink just before you taste.
> You can take some drink like lemon and always the same taste and clean your
> mouth with a lot of water between drinks and you have a better chance of
> recognizing your wines.
>
> 2008/8/30 Devon McCormick <[EMAIL PROTECTED]>
>
>
> > Members of the Forum -
> >
> > I had a blind-tasting last night where we sampled five different wines.
> > After two rounds of tasting the wines in the same order, we had a round
> > where we sampled them in a random, unknown order. Afterwards, we tried to
> > guess which wines from the random order corresponded to their original
> > numbering. On average, we were able to do this only once each.
> >
> > Not knowing how this shakes out by chance, I did the following to
> simulate
> > comparing pairs of random permutations of five items to see how our
> results
> > compared to random selection.
> >
> > ?~5 NB. 5-permutation
> > 0 4 3 1 2
> > $rs=. ?~2 1000$5 NB. 1000 pairs of 5-permutations
> > 2 1000 5
> > 0{=/rs NB. Look at the first comparison
> > 1 0 0 0 0
> > 0{"2 rs NB. and permutation pair.
> > 1 0 4 3 2
> > 1 3 2 0 4
> > +/,=/rs NB. How many total matches?
> > 992 NB. Average of 1.
> >
> > So, our ability to recognize the wines we'd just tasted twice is no
> better
> > than random. It occurred to us that perhaps five is too many to
> distinguish
> > and maybe we should taste only two at a time if we do this again.
> >
> > So, what would be the random match if we did this with only two wines?
> >
> > +/,=/?~2 1000$2
> > 986
> >
> > Huh? It's the same: about one on average. Try this for other permutation
> > lengths....
> >
> > +/,=/?~2 1000$3
> > 992
> > +/,=/?~2 1000$10
> > 982
> >
> > Try larger sample size too.
> >
> > +/,=/?~2 10000$5
> > 9886
> > +/,=/?~2 10000$10
> > 10185
> > +/,=/?~2 10000$20
> > 10058
> > +/,=/?~2 10000$100
> > 10049
> >
> > No matter what size the permutation, the average chance of a match is
> about
> > one. This seems counter-intuitive to me. Am I doing something wrong in my
> J
> > code or is this one of those well-known theorems of statistics about
> which
> > I'm completely ignorant?
> >
> > You decide.
> >
> > Regards,
> >
> > Devon McCormick
> > ^me^ at acm.
> > org is my
> > preferred e-mail
>
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
>
>
>
> --
> Björn Helgason, Verkfræðingur
> Fugl&Fiskur ehf,
> Þerneyjarsundi 23, Hraunborgum
> Po Box 127,801 Selfoss ,
> t-póst: [EMAIL PROTECTED]
> gsm: +3546985532
> Landslags og skrúðgarðagerð, gröfuþjónusta
> http://groups.google.com/group/J-Programming
>
>
> Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans
>
> góður kennari getur stigið á tær án þess að glansinn fari af skónum
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> For information about J forums see http://www.jsoftware.com/forums.htm
>
--
Devon McCormick, CFA
^me^ at acm.
org is my
preferred e-mail
----------------------------------------------------------------------
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