Undefined operator '==' for input arguments of type 'cell'. Error in Elenco (line 13) if tell(i)==c

function [num_dis]=Elenco(codice,tell,drat,esecuzione,c,d,e)

    N=length(tell);
       j=1;
      num_dis=[];
    temp=[];

    g=false;
    f=false;
    l=false;

    for i=1:N
            if tell(i)==c 
                g=true;
            end
                if drat(i)~=d
                   g=false;
                end
                if esecuzione(i)~=e
                    l=false;
                end      
        if g==true
        temp(j)=codice(i);
        j=j+1;
    else i=i+1;
        end 
    end
       for k=1:10
          num_dis(k)=temp(k);
        end
    end

[Stephen23]

@Alcapalb: your code is very badly aligned. Badly aligned code is one way that beginners hide bugs in their code. You should align your code using the MATLAB Editor's default settings. You can also align the code in the Editor: select all the code, then click ctrl+i.

[Alcapalb]

Thank you

Answer 1

[James Tursa]

You don't tell us much about what the variable types and sizes are, so we can only guess. Maybe you need this:

        if tell{i}==c

or maybe this:

        if isequal(tell{i},c)

If you could tell us the variable types and sizes we could help more.

[Alcapalb]

Thank you very much, James. I've already solved the problem

[JP]

In order to make this post useful for other visitors maybe you should point out what the error actually was?

[Mostafa Abdelrehim]

I got the same bug, and I solved it by changing if tell{i}==c to if isequal(tell{i},c) so I think Alcapalb did the same