Dear Mary,
This is explained at
http://www.mozart-oz.org/documentation/system/
node26.html#section.fd.distribution
ff: Xv must be a vector of finite domain integers. Considers only
non-determined elements of Xv. Chooses the leftmost variable X in Xv,
whose domain size is minimal. Creates a choice point for X=L and X\=:L,
where L is the lower bound of the domain of X.
If you want to have multiple distributors (I try mind reading your
question here and may misunderstand you ;-) ), you may look at the
example in
http://www.mozart-oz.org/documentation/fdt/node28.html#label81
In general, Christian Schulte discourages the use of multiple
distributors in his book (p. 35) as a source of hard to find program
errors. If you want to express 'first distribute these vars and then
those' you can write your own distributor from scratch to do that as a
single distributor, see
http://www.mozart-oz.org/documentation/fdt/node40.html#chapter.user-
defined
Best,
Torsten
On 03.08.2006, at 04:46, Mary Aranda Cabezas wrote:
Hello
Somebody can explain to me which is the effect to apply distribution
followed on different variables, that is to say, which is the effect
to do the following thing:
...
{FD.distribute ff Costo}
{FD.distribute ff Columnas}
...
It's possible to do it?
Which is the effect?
This question arose from my attempt to solve Set Covering Problem in
Mozart/Oz, if somebody has some suggestion in the resolution of this
problem is welcome, specially with respect to the restrictions of the
problem.
Greetings!
Mary
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Torsten Anders
Sonic Arts Research Centre • Queen's University Belfast
Frankstr. 49 • D-50996 Köln
Tel: +49-221-3980750
http://www.torsten-anders.de
http://strasheela.sourceforge.net
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