Initializing help system before first use

getdirs

Purpose
Used to return the directives that have been loaded into a matrix.
Priorities, forced branching directions and pseudo costs can be returned. If called after presolve, getdirs will get the directives for the presolved problem.
Synopsis
getdirs(prob)
Argument
prob 
The current problem.
Return value
A list with the following elements:
ndir
The number of directives.
indices
The column numbers ( 0, 1, 2,...) or negative values corresponding to special ordered sets (the first set numbered -1, the second numbered -2,...).
prios
The priorities for the columns and sets, where columns/sets with smallest priority will be branched on first.
branchdirs
Character array of length ndir specifying the branching direction for each column or set:
U
the entity is to be forced up;
May be NULL if not required.
D
the entity is to be forced down;
N
not specified.
uppseudo
The up pseudo costs for the columns and sets.
downpseudo
The down pseudo costs for the columns and sets.
Further information
Please refer to the C documentation for more details.

Parent Topic R interface reference manual

© 2001-2025 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.