FIS AND GUIDE

I am working on a medical expert system which diagnoses an ailment whose clinical features (FIS input variables) are A, B, C and D respectively while E is the FIS output variable. The Fuzzy Inference Systems (FIS) produced an output (value) for each combination of the above clinical features (FIS input variables)using Fuzzy Logic 'AND'. For instance: When A = 15.00, B = 1.50, C = 1.80 and D 2.00, E (Output) = 37.50 , When A = 22.50, B = 1.64, C = 2.30 and D = 2.38, E (Output) = 50.00 and When A = 21.70, B = 2.13, C = 2.40 and D = 2.56, E (Output) = 84.00 But I am unable to get an output for each combination of them in GUIDE (Graphical User Interface Development Environment). In a nutshell, your help is needed on how to send FIS output (value) to GUIDE and/or how to link FIS with GUIDE using MATLAB software. Thanks.