exportProb Method (Int32, String)

Print problem matrix to a file. This method prints the matrix to a file with an extended LP or extended MPS format. Provided that no extension is given by the user LP files receive the extension .lp. MPS files always receive the extension .mat. When exporting matrices semi-continuous and semi-continuous integer variables are preprocessed: if a lower bound value greater than 0 is given, then the variable is treated like a continuous (resp. integer) variable. The precision used by BCL for printing real numbers can be changed with setRealFmt(string) to obtain more accurate output for very large or very small numbers. For full precision matrix output the user is advised to switch to the Optimizer function XPRSprob.writeProb, preceded by a call to loadMat().

Namespace:   BCL
Assembly:  xprbdn (in xprbdn.dll) Version: 4.0.0.0

Syntax

C#

VB

Copy

public int exportProb(
	int format,
	string filename
)

Public Function exportProb ( 
	format As Integer,
	filename As String
) As Integer

Parameters

format

Type:  SystemInt32
The matrix output file format. Possible values:

• BCLconstant.XPRB_LP - LP file format.
• BCLconstant.XPRB_MPS - MPS file format.

filename

Type:  SystemString
The name of the output file without the extension.

Return Value

Type:  Int32
0 on success, 1 otherwise.

Examples

xbcontr1.cs, xbdelvr.cs, xbexpl.cs, xbportf.cs and xbpurch.cs in the Introductory Examples folder. foliolp.cs, xbexpl1.cs, xbexpl2 and xbqprl2.cs in the User's Guide Examples folder.

See Also

Reference

XPRBprob Class

exportProb Overload

BCL Namespace

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