public string Print()
{
StringBuilder sb = new StringBuilder();
switch (Type)
{
case FactorType.Constant:
sb.Append(ConstantValue.ToString());
break;
case FactorType.SimilarityMetric:
sb.Append(SimilarityMetric.GetType().Name);
break;
case FactorType.Expression:
sb.Append("(");
sb.Append(Expression.Print());
sb.Append(")");
break;
case FactorType.Function:
sb.Append(FunctionType.ToString());
break;
}
return(sb.ToString());
}