private Fraction GetCoefficientForCutoff(string variable, SimplexTable table, string creativeVar,
ICollection<string> wholeConstraints)
{
var varIndex = table.IndexOf(variable);
var creativeRow = table.GetRow(creativeVar);
var varCoefFractionalPart = GetFractionalPart(creativeRow.Key[varIndex]);
var freeCoefFractionalPart = GetFractionalPart(creativeRow.Value);
if (wholeConstraints.Contains(variable))
return (varCoefFractionalPart <= freeCoefFractionalPart)
? varCoefFractionalPart
: freeCoefFractionalPart / (1 - freeCoefFractionalPart) * (1 - varCoefFractionalPart);
return (creativeRow.Key[varIndex] >= 0)
? creativeRow.Key[varIndex]
: freeCoefFractionalPart / (1 - freeCoefFractionalPart) * (-1 * varCoefFractionalPart);
}
