ttt=: 3 : 0
(a.{~ 65+i.y) ,. ('CP' {~ 0 1 2 e. ?&3)"0 >:y [EMAIL PROTECTED] 2
)
ttt 5
ACPC
BCCP
CCCP
DCPC
ECCP
ttt 7
ACPP
BCCP
CCPC
DPCC
ECPP
FCPP
GCPC
----- Original Message -----
From: Brian Schott <[EMAIL PROTECTED]>
Date: Thursday, November 16, 2006 10:49 am
Subject: [Jprogramming] taste testing triads (ttt)
> Tonight we are having a book club review of Blink by
> Malcolm Gladwell. We want to have a "triad" taste test
> between Coke and Pepsi. Each person receives three cups of
> soda each marked only with a single letter and either a 1, a
> 2, or a 3; the letter distinguishes between the people (up
> to 26 people). The tester needs a randomized setup table to
> fill the cups in such a way that every person gets either 2
> Pepsi's and 1 Coke or 1 Pepsi and 2 Cokes, so that each
> person can report which cup is different in their sample.
>
> Can you produce the table? It is not essential that
> exactly the same number of triads have Coke and Pepsi
> singletons.
>
> A sample output might look like this.
>
> person cup1 cup2 cup3
> A P P C
> B P C P
> C C P C
> ...
> Z P C P
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