Initializing help system before first use

problem.addcbnodelpsolved

Purpose
Declares a node LP solved callback function, called during the branch and bound search, after the LP relaxation has been solved for the current node, but before any internal cuts and heuristics have been applied. This callback function will be called in addition to any callbacks already added by XPRSaddcbnodelpsolved.
Synopsis

problem.addcbnodelpsolved(callback, data, priority)

callback(my_prob, my_object)
Arguments
callback 
The callback function, which takes two arguments, my_prob and my_object, and has no return value.
my_prob 
The problem passed to the callback function, callback.
my_object 
The user-defined object passed as data when setting up the callback with addcbnodecutoff.
data 
A user-defined object to be passed to the callback function, callback.
priority 
An integer that determines the order in which multiple node-optimal callbacks will be invoked. The callback added with a higher priority will be called before a callback with a lower priority. Set to 0 if not required.
Related topics
problem.removecbnodelpsolved, problem.addcboptnode

Parent Topic Xpress problem methods

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