public void ObjectiveFunction_Substitution_Successful(
ObjectiveFunction objectiveFunction, Decomposition decomposition, ObjectiveFunction expected)
{
objectiveFunction.Substitution(decomposition);
CollectionAssert.AreEqual(expected.ToArray(), objectiveFunction.ToArray());
}
public void SimplexTable_Solve_Successful(
Decomposition decomposition, ObjectiveFunction objectiveFunction, Fraction expected)
{
var dut = new SimplexTable(decomposition, objectiveFunction, _logger).Calculate();
Assert.AreEqual(expected, dut);
}
public void Matrix_DecompositionByCornerPoint_Success(
Matrix matrix, int[] cornerPoint, Decomposition expected)
{
var dut = matrix.DecompositionByCornerPoint(cornerPoint);
CollectionAssert.AreEqual(expected.BasicVariables, dut.BasicVariables);
CollectionAssert.AreEqual(expected.FreeVariables, dut.FreeVariables);
CollectionAssert.AreEqual(expected.Coefficients, dut.Coefficients);
}
public SimplexTable(Decomposition decomposition, ObjectiveFunction objectiveFunction,
ILogger logger = null, UserChoice userChoice = null, bool isDecimalFractions = false)
{
_decomposition = decomposition;
_logger = logger;
_userChoice = userChoice;
_isDecimalFractions = isDecimalFractions;
_shortObjectiveFunction = ConvertToShortObjectiveFunction(decomposition, objectiveFunction);
}
public void Test1()
{
var dec = new Decomposition
{
BasicVariables = new[] {5, 6, 7},
FreeVariables = new[] {0, 1, 2, 3, 4},
Coefficients = new Fraction[,] {{-2, 4, 1, -1, 0, 3}, {4, -3, -1, 1, 1, 6}, {1, 4, 1, 0, 1, 15}}
};
var objFunc = new ObjectiveFunction(new Fraction[] {-3, -5, -1, 0, -2, 24});
var dut = new SimplexTable(dec, objFunc, new Logger());
var artBasic = dut.ToArtificialBasic();
}
public void Decomposition_RowIndexOfBearingElementAtColumn_Successful(
Decomposition decomposition, int column, int expected)
{
Assert.AreEqual(expected, decomposition.RowIndexOfBearingElementAtColumn(column));
}
public void SimplexTable_Solve_Unsolvable(Decomposition decomposition, ObjectiveFunction objectiveFunction)
{
Assert.Throws(typeof(Exception), () => new SimplexTable(decomposition, objectiveFunction, _logger).Calculate());
}
/// <summary>
/// Выделение из полной целевой функции нужных коэффициентов по декомпозиции
/// </summary>
private static ObjectiveFunction ConvertToShortObjectiveFunction(Decomposition decomposition, ObjectiveFunction objectiveFunction)
{
var shortObjectiveFunction = new List<Fraction>();
for (var i = 0; i < objectiveFunction.Count(); i++)
{
if (decomposition.FreeVariables.Contains(i))
shortObjectiveFunction.Add(objectiveFunction[i]);
}
shortObjectiveFunction.Add(objectiveFunction.Last());
return new ObjectiveFunction(shortObjectiveFunction);
}