Initializing help system before first use

problem.addSets

Purpose
Allows sets to be added to the problem after passing it to the Optimizer using the input routines.
Topic areas
Problem Creation, MIP Entities, Optimizer
Synopsis
problem.addSets(settype, start, colind, refval)
Arguments
settype: list[str] 
Character array containing the set types:
1 
indicates a SOS1;
2 
indicates a SOS2;
start: list[int] 
Integer array containing the offsets in the colind and refval arrays of the start of the elements for each set.
colind: list[var] 
Integer array containing the (contiguous) column indices for the elements in each set.
refval: list[float] 
Double array containing the (contiguous) reference values. These define the order for SOS2 constraints and may be used in branching for both types. Within a set, no two elements can have the same reference values and reference values must differ by at least SOSREFTOL (relative difference).
Further information
1. Reference values must be sufficiently distinct (see SOSREFTOL).
2. This function cannot be called while the current problem is being solved or when it is in an interrupted state. Use problem.postSolve to restore the problem to a non-solving state.
3. Argument colind may contain either xpress.var objects or integer indices.
Related topics
problem.delSets.

Parent Topic Xpress problem object methods

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