/// <summary>
/// Находит наилучшие решения по методу Електра.
/// </summary>
/// <param name="current">Варианты выбора и параметры каждого варианта.</param>
/// <returns>Таблица с новыми значениями.</returns>
public static TableOfResults ElectraMethod(TableOfExemplars current)
{
Dictionary <KeyValuePair <Exemplar, Exemplar>, ElementOfTable> values = new Dictionary <KeyValuePair <Exemplar, Exemplar>, ElementOfTable>();
foreach (var pair in current.Join())
{
Exemplar first = pair.Key;
Exemplar second = pair.Value;
Dictionary <Exemplar, double> score = new Dictionary <Exemplar, double>(2)
{
[first] = 0,
[second] = 0
};
foreach (Column difference in current.Columns)
{
if (first.IsBetter(difference, second))
{
score[first] += difference.Weight;
}
else if (second.IsBetter(difference, first))
{
score[second] += difference.Weight;
}
}
values[pair] = score[first] / score[second];
}
return(new TableOfResults(values));
}
public bool IsBetter(Column column, Exemplar another)
=> column.IsBetterMany ? (this[column] > another[column])
: (this[column] < another[column]);