Thanks. Apparently I somehow missed that whole set of examples! -- dan
On 1/1/08, Luis Quesada <[EMAIL PROTECTED]> wrote: > Daniel Burnett wrote: > > I am implementing a Sudoku generator/solver using the FD module and > > have run into what appears to be a limitation in the existing > > distribution options of FD.distribute. > > > > I have a record with 81 elements, each of which is constrained to be > > either 0 or 1, out of which I want my solver to select a number Num of > > these elements to have the value 1, subject to a few other > > constraints. During the distribution stage, I do not want the > > "leftmost" variable to be selected, but rather would like one selected > > at random. I cannot seem to find a way to use either the Order or > > Filter options of generic() to select elements at random. It is easy > > to select values of elements at random by writing a unary function for > > generic(value:..), but there doesn't seem to be a comparable way to > > select elements. > > > > Can anyone suggest a solution to this that does not require writing a > > new distribution algorithm in C/C++? > Have a look at the example in: > > http://www.mozart-oz.org/documentation/fdt/node42.html#section.user-defined.split > It is just a matter of implementing a function that randomly selects a > variable out of a set of variables. > Happy New Year! > Cheers, > Luis > _________________________________________________________________________________ > mozart-users mailing list > [email protected] > http://www.mozart-oz.org/mailman/listinfo/mozart-users > _________________________________________________________________________________ mozart-users mailing list [email protected] http://www.mozart-oz.org/mailman/listinfo/mozart-users
