Function definition are not supported in this context. Functions can only be created as local or nested functions in code files.(clarification and application?)

Hi! I've seen this question asked before but have been unable to properly understand the solution. I am getting the error message "Function definition are not supported in this context. Functions can only be created as local or nested functions in code files." when running this code:

status = function celldestiny2(A,i,j)

n = numneighbors(A,i,j);
disp('n e')
disp(num2str(n))
%mindre än 2 ensam o dör, alltså blir 0
if n < 2 
    status=dod
else if n == 2 
%om död 2 grannar -> inget händer
    if A(i,j)==0
        status=dod
%om levande o 2 grannar -> inget händer
    else 
        status=levande
    end

else if n == 3
%om 3 grannar och TOM plats, föds ny. 
    if A(i,j)==0
        status=levande
%om 3 grannar och lever -> inget händer.
    else
        status=levande
    end
else if n > 3
    status=dod
    disp('svalt')
%mer än 3 grannar -> dör

    end
end

end

end
A
end

Things I have tried to no success:

• deleting the A at the end
• checking if I'm missing any end statements (I shouldn't be, though I'm not sure if those at the end are correctly placed)
• changing the "status" from a word output to a value (0 or 1)

I've heard something about the function definition needing to be at the "end" of the file, but what does that mean and how do I apply it practically? Any help would be greatly appreciated :)

[Dyuman Joshi]

That is not how functions are defined or called. The first line of your code does not follow the correct syntax.

Have a look here - https://in.mathworks.com/help/matlab/ref/function.html

and here - https://in.mathworks.com/help/matlab/matlab_prog/create-functions-in-files.html

[Linnea]

thank you!

Answer 1

[Image Analyst]

Try this as the first line to declare the function:

function status = celldestiny2(A,i,j)

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[Image Analyst]

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