why i do Unrecognize variable addInput?

I had a problem in running mscript fuzzy in matlab 2022 (Unrecognize variable addInput). How can i fix that?

There is a script

fis1 = 'sugfis';

% Define input variables and ranges

fis1 = addInput(fis1,[-1 1],'Name','E');

fis1 = addInput(fis1, [-1 1],'Name','delE');

% Define mf’s of input variable

fis1 = addMF(fis1,'E','trimf',[-1 -1 0],'Name','N');

fis1 = addMF(fis1,'E','trimf',[-1 0 1],'Name','Z');

fis1 = addMF(fis1,'E','trimf',[0 1 1],'Name','P');

fis1 = addMF(fis1,'delE','trimf',[-1 -1 0],'Name','N');

fis1 = addMF(fis1,'delE','trimf',[-1 0 1],'Name','Z');

fis1 = addMF(fis1,'delE','trimf',[0 1 1],'Name','P');

% Define output variables and ranges

fis1 = addOutput(fis1,[-1 1],'Name','U');

% Define mf’s of output variable

fis1 = addMF(fis1,'U','constant',[-1],'Name','NL');

fis1 = addMF(fis1,'U','constant',[-0.8],'Name','NS');

fis1 = addMF(fis1,'U','constant',[0],'Name','Z');

fis1 = addMF(fis1,'U','constant',[0.8],'Name','PS');

fis1 = addMF(fis1,'U','constant',[1],'Name','PB');

rules = [...

"E==N & delE==N => U=NL"; ...

"E==Z & delE==N => U=NS"; ...

"E==P & delE==N => U=Z"; ...

"E==N & delE==Z => U=NS"; ...

"E==Z & delE==Z => U=Z"; ...

"E==P & delE==Z => U=PS"; ...

"E==N & delE==P => U=Z"; ...

"E==Z & delE==P => U=PS"; ...

"E==P & delE==P => U=PB"; ...

];

% Add rule table

fis1 = addRule(fis1,rules);

There is a problem

Error in TIPE1 (line 3)

fis1 = addInput(fis1,[-1 1],'Name','E');

Thanks Before

Regards,

Carolus

Answer 1

[Abhinav]

Hi carolus

fis1 = 'sugfis';

This is likely the cause of the error, remove the quotes from sugfis