
set_weighted_degree_decay(+Decay)

   Change the current decay rate for weighted degree to Decay.

Arguments
   Decay               Number between 0 and 1.

Type
   library(gfd)

Description

   Change the current decay rate for weighted degree to Decay. The decay rate
   governs how fast the weighted degree decays -- each time a failure
   occurs during Gecode's constraint propagation, the constraint that
   failed will have 1 added to its failure count, while all
   other constraints' failure count is updated by multiplying its
   old value by the decay rate. The decay rate is a floating point value
   between 1 (no decay) and 0 (decay to 0 immediately). The weighted
   degree for a domain variable is the sum of all the failure
   counts of the constraints that the variable occurs in. 



