Hi Christian,
Thanks for the pointer. I assume as applied here, it is the index for
the variable(s) in x that has the minimum value.
I did not know (or at least remember) about argmin, and I don't know if
it is common knowledge, so perhaps a little more explanation in the MPG
might be helpful?
I assume there is no offset that can be specified for this constraint,
to offset the index, as is available for some of the other constraints?
That is, in order to get this constraint so that the index start from 1,
I need to add a dummy 0'th element to x?
I think argmin is min_index in GCAT? This is not mentioned in the MPG,
as is done for other constraints in the MPG, or am I missing some
differences between argmin and min_index? (GCAT's minimum is also not
mentioned for min)
Cheers,
Kish
On 24/06/2015 10:45, Christian Schulte wrote:
Well it is just argmin:
https://en.wikipedia.org/wiki/Arg_max
Christian
--
Christian Schulte, www.gecode.org/~schulte
Professor of Computer Science, KTH, [email protected]
Expert Researcher, SICS, [email protected]
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of Kish Shen
Sent: Wednesday, June 24, 2015 9:41 AM
To: [email protected]
Subject: [gecode-users] argmin
Hi,
I am trying to understand the argmin/max constraints, but I don't understand
the description in the MPG (section 4.4.5 Arithemetic constraints),L what
does Chargmin(x) mean in:
argmin(home, x, y)
constrains y to argimin(x)?
Cheers,
Kish
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