Use the Fuzzify List Question Built Tool to utilise Fuzzy inference in Decision Trees.
The developer must specify the min/max range of the numeric values that will feeds into the Fuzzified List Question
This tool will define the Fuzzy Membership Function for each of it's value which determines how a given numeric value is mapped to a Membership Value for each List value. It defaults to a uniform distribution of the numeric range amongst all the List values, which the developer can change to reflect the real ranges.
The optional numeric Object automatically generates the following code in the OnCapture Event of the fuzzified List Object:
If the optional numeric Object is not specified then the developer must assign fuzzyvalue property of the List question to the required numeric Object before inference of the Fuzzified List Question is encountered in inference.
For example:
#Climate.prop("fuzzyvalue",#Temperature.val());