How can i make custom defuzzification method ??

Although there is a option of making custom defuzzification method in matlab. But when i select that option is says DEFUZZIFICATION function 'newmethod' does not exist! . For that i need to create new script file named as newmethod. My question is what should be the inputs to that newmethod function.

[Wajdi Al-Rikabi]

Find the following path, file : C:\Program Files\MATLAB\R2014b\toolbox\fuzzy\fuzzy\defuzz.m Then edit its last section to define your method.