/// <summary>
/// Returns the sensitivity to the market data specified by {@code name}.
/// <para>
/// This returns a sensitivity instance which stores the sensitivity of the {@code marketDataName} delta to another
/// market data of {@code name}.
///
/// </para>
/// </summary>
/// <param name="name"> the name </param>
/// <returns> the sensitivity </returns>
/// <exception cref="IllegalArgumentException"> if the name does not match an entry </exception>
public CrossGammaParameterSensitivity getSensitivity <T1>(MarketDataName <T1> name)
{
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: com.opengamma.strata.collect.tuple.Pair<int, java.util.List<? extends ParameterMetadata>> indexAndMetadata = findStartIndexAndMetadata(name);
Pair <int, IList <ParameterMetadata> > indexAndMetadata = findStartIndexAndMetadata(name);
int startIndex = indexAndMetadata.First;
int rowCt = ParameterCount;
int colCt = indexAndMetadata.Second.Count;
//JAVA TO C# CONVERTER NOTE: The following call to the 'RectangularArrays' helper class reproduces the rectangular array initialization that is automatic in Java:
//ORIGINAL LINE: double[][] sensi = new double[rowCt][colCt];
double[][] sensi = RectangularArrays.ReturnRectangularDoubleArray(rowCt, colCt);
for (int i = 0; i < rowCt; ++i)
{
Array.Copy(Sensitivity.rowArray(i), startIndex, sensi[i], 0, colCt);
}
return(CrossGammaParameterSensitivity.of(MarketDataName, ParameterMetadata, name, indexAndMetadata.Second, Currency, DoubleMatrix.ofUnsafe(sensi)));
}