The INTPOINT Procedure
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Overview
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Getting Started
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SyntaxFunctional SummaryDictionary of OptionsPROC INTPOINT StatementCAPACITY StatementCOEF StatementCOLUMN StatementCOST StatementDEMAND StatementHEADNODE StatementID StatementLO StatementNAME StatementNODE StatementQUIT StatementRHS StatementROW StatementRUN StatementSUPDEM StatementSUPPLY StatementTAILNODE StatementTYPE StatementVAR Statement
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DetailsInput Data SetsOutput Data SetsConverting Any PROC INTPOINT Format to an MPS-Format SAS Data SetCase SensitivityLoop ArcsMultiple ArcsFlow and Value BoundsTightening Bounds and Side ConstraintsReasons for InfeasibilityMissing S Supply and Missing D Demand ValuesBalancing Total Supply and Total DemandHow to Make the Data Read of PROC INTPOINT More EfficientStopping Criteria
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ExamplesProduction, Inventory, Distribution ProblemAltering Arc DataAdding Side ConstraintsUsing Constraints and More Alteration to Arc DataNonarc Variables in the Side ConstraintsSolving an LP Problem with Data in MPS FormatConverting to an MPS-Format SAS Data SetMigration to OPTMODEL: Production, Inventory, Distribution
- References
COEF variables ;
The COEF list is used with the sparse input format of the CONDATA= data set. The COEF list can contain more than one SAS variable, each of which must have numeric values. If the COEF statement
is not specified, the CONDATA= data set is searched and SAS variables with names beginning with _COE are used. The number of SAS variables in the COEF list must be no greater than the number of SAS variables in the ROW list.
The values of the COEF list variables in an observation can be interpreted differently than these variables’ values in other
observations. The values can be coefficients in the side constraints, costs and objective function coefficients, bound data,
constraint type data, or rhs data. If the COLUMN list variable has a value that is a name of an arc or a nonarc variable, the 
th COEF list variable is associated with the constraint or special row name named in the th ROW list variable. Otherwise, the COEF list variables indicate type values, rhs values, or missing values.
When solving an LP, the values of the COEF list variables in an observation can be interpreted differently than these variables’
values in other observations. The values can be coefficients in the constraints, objective function coefficients, bound data,
constraint type data, or rhs data. If the COLUMN list variable has a value that is a name of an LP variable, the th COEF list variable is associated with the constraint or special row name named in the th ROW list variable. Otherwise, the COEF list variables indicate type values, rhs values, or missing values.