Error while using fuzzy logic command-evalfis

 On using the following command
FIS = readfis('fuzzy.fis');
FIS.input.range = pmax; 
[Y,IRR,ORR,ARR]=evalfis(X,FIS);% X and Y are row matrices

The error looks like ??? Error using ==> evalfismex Calloc error in fisCreateMatrix!

Error in ==> evalfis at 84 [output,IRR,ORR,ARR] = evalfismex(input, fis, numofpoints);

What may be the possible reason of this error and how can I remove it?

[siddhant soni]

"Calloc error" in fuzzy logic appears when fuzzy rules are not set or any of fis structure field is empty. Check the fuzzy fis structure none of its field should be empty. example:

      name: 'fuzzy_ex'
      type: 'mamdani'
       andMethod: 'min'
        orMethod: 'max'
    defuzzMethod: 'centroid'
       impMethod: 'min'
       aggMethod: 'max'
           input: [1x3 struct]
          output: [1x1 struct]
            rule: [1x27 struct]

[yesm d]

I would like to evalute not only a variable but a fuzzy set ("observation") it is possible ?

[Gagandeep Sahib]

one possibility of this error is that..... after defining rules matrix you have not added rules to the FIS.... which is done using

a=addrule(a,ruleList);

where a is any FIS ruleList is rule matrix

Answer 1

[Jan]

"Calloc error" appears only, if the memory is exhausted. Check this by:

feature memstats

[nikita]

But feature memstats is indicating adequate space