The LP Procedure
- Overview
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Getting Started
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Syntax
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Details
Missing Values Dense Data Input Format Sparse Data Input Format Converting Any PROC LP Format to an MPS-Format SAS Data Set Converting Standard MPS Format to Sparse Format The Reduced Costs, Dual Activities, and Current Tableau Macro Variable ORLP Pricing Scaling Preprocessing Integer Programming Sensitivity Analysis Range Analysis Parametric Programming Interactive Facilities Memory Management Output Data Sets Input Data Sets Displayed Output ODS Table and Variable Names Memory Limit
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Examples
An Oil Blending Problem A Sparse View of the Oil Blending Problem Sensitivity Analysis: Changes in Objective Coefficients Additional Sensitivity Analysis Price Parametric Programming for the Oil Blending Problem Special Ordered Sets and the Oil Blending Problem Goal-Programming a Product Mix Problem A Simple Integer Program An Infeasible Problem Restarting an Integer Program Alternative Search of the Branch-and-Bound Tree An Assignment Problem A Scheduling Problem A Multicommodity Transshipment Problem with Fixed Charges Converting to an MPS-Format SAS Data Set Migration to OPTMODEL: Assignment Migration to OPTMODEL: Multicommodity Transshipment
- References
| RHSSEN Statement |
- RHSSEN variables ;
For the dense input format, the RHSSEN statement identifies variables in the problem data set that define change vectors for examining the sensitivity of the optimal solution to changes in the RHS constants. If the RHSSEN statement is omitted, then the LP procedure assumes that a variable named _RHSSEN_ contains a right-hand-side change vector.
For the sparse input format, the RHSSEN statement gives the names of one or more columns in the problem data set that are to be considered as change vectors. If the RHSSEN statement is omitted, then the LP procedure assumes that the column named _RHSSEN_ or columns with the 'RHSSEN' keyword in the problem data set contain the right-hand-side change vectors. For further information, see the section Sparse Data Input Format, the section Right-Hand-Side Sensitivity Analysis, and the section Right-Hand-Side Parametric Programming.