/// <summary>
/// Determine which item's index is the value.
/// </summary>
public override void RowInit()
{
for (int i = 0; i < this.items.Count; i++)
{
NominalItem item = this.items[i];
if (item.IsInRange())
{
this.currentValue = i;
break;
}
}
if (this.equilateral == null)
{
this.equilateral = new Equilateral(this.items.Count, this.high,
this.low);
}
}
/// <summary>
/// Calculate the value for the specified subfield.
/// </summary>
/// <param name="subfield">The subfield to calculate for.</param>
/// <returns>The calculated value for this field.</returns>
public override double Calculate(int subfield)
{
NominalItem item = this.items[subfield];
return(item.IsInRange() ? this.trueValue : this.falseValue);
}