/// <summary>
/// Faz a leitura de uma matriz de valores numéricos.
/// </summary>
/// <param name="lines">The number of lines.</param>
/// <param name="columns">The number of columns.</param>
/// <param name="arrayString">O texto que representa a matriz.</param>
/// <param name="defaultValue">O valor por defeito.</param>
/// <returns>A matriz lida.</returns>
public SparseDictionaryMathMatrix <double> ReadArray(
int lines,
int columns,
string arrayString,
double defaultValue = 0)
{
var expressionParser = new DoubleExpressionParser();
var reader = new StringReader(arrayString);
var stringSymbolReader = new StringSymbolReader(reader, false);
var arrayMatrixFactory = new SparseDictionaryMathMatrixFactory <double>();
var arrayMatrixReader = new ConfigMatrixReader <double, IMathMatrix <double>, string, string>(
lines,
columns);
arrayMatrixReader.MapInternalDelimiters("left_bracket", "right_bracket");
arrayMatrixReader.AddBlanckSymbolType("blancks");
arrayMatrixReader.SeparatorSymbType = "comma";
var matrix = default(IMathMatrix <double>);
if (arrayMatrixReader.TryParseMatrix(
stringSymbolReader,
expressionParser,
(i, j) => arrayMatrixFactory.CreateMatrix(i, j, defaultValue),
out matrix))
{
return(matrix as SparseDictionaryMathMatrix <double>);
}
else
{
throw new ArgumentException("Can't read the specified matrix.");
}
}
public void ComputeCostsCoefficientsTest()
{
var field = new DoubleField();
var revisedSimplexAlg = new RevisedSimplexAlgorithm <double>(
Comparer <double> .Default,
field);
var target = new PrivateObject(revisedSimplexAlg);
var etaVector = new double[4];
// Fábricas úteis para o teste dos quatro cenários.
var arrayMatrixFactory = new ArrayMathMatrixFactory <double>();
var squareArrayMatrixFactory = new ArraySquareMatrixFactory <double>();
var sparseMatrixFactory = new SparseDictionaryMathMatrixFactory <double>();
var squareSparseMatrixFactory = new SparseDictionarySquareMatrixFactory <double>();
this.TestComputeCostsCoefficients(target, squareArrayMatrixFactory, 0, arrayMatrixFactory, 0, etaVector);
this.TestComputeCostsCoefficients(target, squareArrayMatrixFactory, 0, sparseMatrixFactory, 0, etaVector);
this.TestComputeCostsCoefficients(target, squareSparseMatrixFactory, 0, arrayMatrixFactory, 0, etaVector);
this.TestComputeCostsCoefficients(target, squareSparseMatrixFactory, 0, sparseMatrixFactory, 0, etaVector);
}
