public static TransformFunction Create(string funcName, string[] parameters, int idxStart)
{
TransformFunction transFunc;
switch (funcName)
{
case "linear":
transFunc = new LinearTransform(parameters, idxStart);
break;
case "bucket":
transFunc = new BucketTransform(parameters, idxStart);
break;
case "rational":
transFunc = new RationalTransform(parameters, idxStart);
break;
case "loglinear":
transFunc = new LogLinearTransform(parameters, idxStart);
break;
case "DecisionTree":
transFunc = new DecisionTreeTransform(parameters, idxStart);
break;
case "BM25F2":
transFunc = new BM25F2Transform(parameters, idxStart);
break;
case "LogBM25F2":
transFunc = new LogBM25F2Transform(parameters, idxStart);
break;
default:
throw new Exception("un-handled input transformation " + funcName);
}
return transFunc;
}
public RationalTransform(RationalTransform oriTransform)
{
this.intercept = oriTransform.intercept;
this.dampingFactor = oriTransform.dampingFactor;
this.slope = oriTransform.slope;
}