LoadMIQP Method (String, Int32, Int32, Char[], Double[], Double[], Double[], Int64[], Int32[], Int32[], Double[], Double[], Double[], Int64, Int32[], Int32[], Double[], Int32, Int32, Char[], Int32[], Double[], Char[], Int64[], Int32[], Double[])

public void LoadMIQP(
	string probname,
	int ncols,
	int nrows,
	char[] rowtype,
	double[] rhs,
	double[] rng,
	double[] objcoef,
	long[] start,
	int[] collen,
	int[] rowind,
	double[] rowcoef,
	double[] lb,
	double[] ub,
	long nobjqcoefs,
	int[] objqcol1,
	int[] objqcol2,
	double[] objqcoef,
	int nentities,
	int nsets,
	char[] coltype,
	int[] entind,
	double[] limit,
	char[] settype,
	long[] setstart,
	int[] setind,
	double[] refval
)

Parameters

probname

Type:  System.String
A string of up to MAXPROBNAMELENGTH characters containing a name for the problem.

ncols

Type:  System.Int32
Number of structural columns in the matrix.

nrows

Type:  System.Int32
Number of rows in the matrix (not including the objective). Objective coefficients must be supplied in the objcoef array, and the objective function should not be included in any of the other arrays.

rowtype

Type:  System.Char
Character array of length nrows containing the row type:

• L: indicates a <= constraint;
• E: indicates an = constraint;
• G: indicates a >= constraint;
• R: indicates a range constraint;
• N: indicates a nonbinding constraint.

rhs

Type:  System.Double
Double array of length nrows containing the right hand side coefficients. The right hand side value for a range row gives the upper bound on the row.

rng

Type:  System.Double
Double array of length nrows containing the range values for range rows. The values in the range array will only be read for R type rows. The entries for other type rows will be ignored. May be null if not required. The lower bound on a range row is the right hand side value minus the range value. The sign of the range value is ignored - the absolute value is used in all cases.

objcoef

Type:  System.Double
Double array of length ncols containing the objective function coefficients. This can be null to set all objective coefficients to 0 (zero). This can be null to set all objective coefficients to 0 (zero).

start

Type:  System.Int64
Integer array containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This array is of length ncols or, if collen is null, length ncols+1.

collen

Type:  System.Int32
Integer array of length ncols containing the number of nonzero elements in each column. May be null if not required. This array is not required if the non-zero coefficients in the rowind and rowcoef arrays are continuous, and the start array has ncols+1 entries as described above. It may be null if not required.

rowind

Type:  System.Int32
Integer arrays containing the row indices for the nonzero elements in each column. If the indices are input contiguously, with the columns in ascending order, then the length of rowind is start[ncols-1]+collen[ncols-1] or, if collen is null, start[ncols].

rowcoef

Type:  System.Double
Double array containing the nonzero element values length as for rowind.

lb

Type:  System.Double
Double array of length ncols containing the lower bounds on the columns. Use XPRS_MINUSINFINITY to represent a lower bound of minus infinity. If this is null then all lower bounds are 0 (zero).

ub

Type:  System.Double
Double array of length ncols containing the upper bounds on the columns. Use XPRS_PLUSINFINITY to represent an upper bound of plus infinity. It this is null then all upper bounds are infinite.

nobjqcoefs

Type:  System.Int64
Number of quadratic terms.

objqcol1

Type:  System.Int32
Integer array of size nobjqcoefs containing the column index of the first variable in each quadratic term.

objqcol2

Type:  System.Int32
Integer array of size nobjqcoefs containing the column index of the second variable in each quadratic term.

objqcoef

Type:  System.Double
Double array of size nobjqcoefs containing the quadratic coefficients.

nentities

Type:  System.Int32
Number of binary, integer, semi-continuous, semi-continuous integer and partial integer entities.

nsets

Type:  System.Int32
Number of SOS1 and SOS2 sets.

coltype

Type:  System.Char
Character array of length nentities containing the entity types:

• B: binary variables;
• I: integer variables;
• P: partial integer variables;
• S: semi-continuous variables;
• R: semi-continuous integers.

entind

Type:  System.Int32
Integer array of length nentities containing the column indices of the MIP entities.

limit

Type:  System.Double
Double array of length nentities containing the integer limits for the partial integer variables and lower bounds for semi-continuous and semi-continuous integer variables (any entries in the positions corresponding to binary and integer variables will be ignored). May be null if not required.

settype

Type:  System.Char
Character array of length nsets containing:

• 1: SOS1 type sets;
• 2: SOS2 type sets.

May be null if not required.

setstart

Type:  System.Int64
Integer array containing the offsets in the setind and refval arrays indicating the start of the sets. This array is of length nsets+1, the last member containing the offset where set nsets+1 would start. May be null if not required.

setind

Type:  System.Int32
Integer array of length setstart[nsets]-1 containing the columns in each set. May be null if not required.

refval

Type:  System.Double
Double array of length setstart[nsets]-1 containing the reference row entries for each member of the sets. These define the order for SOS2 constraints and may be used in branching for both types. May be null if not required.

Reference