Thank you very much!
This fix really works. Minor note: Matlab does use
aggMethod, it just replaces the empty strings with defaults:
impMethod: 'prod' aggMethod: 'sum'
Its easy to see if you compare the FIS file’s content and the working space variable (structure).
It leads to the inconvenience: Matlab fuzzy editor (from Fuzzy Logic toolbox) changes the file on save, and it is necessary to edit it before jfuzzylight have read it.