Length = ParamList("Regression Length", "Long|Mid|Short");
ROCFactor = IIf(Length == "Long", 1.5, 0);
ROCFactor = IIf(Length
== "Mid", 2, ROCfactor);
ROCFactor = IIf(Length
== "Short", 3, ROCFactor);
ERFactor = IIf(Length
== "Long", 1.25, 0);
ERFactor = IIf(Length
== "Mid", 2.5, ERFactor);
ERFactor = IIf(Length
== "Short", 4, ERFactor);