Fuzzy Logic Toolbox

Some Constraints of anfis

anfis is much more complex than the fuzzy inference systems discussed so far, and is not available for all of the fuzzy inference system options. Specifically, anfis only supports Sugeno-type systems, and these must be:

• First or zeroth order Sugeno-type systems
• Single output, obtained using weighted average defuzzification (linear or constant output membership functions)
• Of unity weight for each rule

An error occurs if your FIS structure does not comply with these constraints.

Moreover, anfis cannot accept all the customization options that basic fuzzy inference allows. That is, you cannot make your own membership functions and defuzzification functions; you'll have to use the ones provided.

Familiarity Breeds Validation: Know Your Data

The ANFIS Editor GUI