Why am I getting this error about the number of input arguments when I have the right number of input arguments? Thank you!

lesser_green_matrix = LesserGreen.empty(0,0);
greater_green_matrix = GreaterGreen.empty(0,0);

for i = 1:V
    for j = 1:V
        disp(i);
        disp(j);
        lesser_object = LesserGreen(my_spin,i,j,hubbard,n,perm,t_values,w_values,combine_zero,chop_threshold);
        lesser_green_matrix(i,j) = lesser_object;
        greater_object = GreaterGreen(my_spin,i,j,hubbard,n,perm,t_values,w_values,combine_zero,chop_threshold);
        greater_green_matrix(i,j) = greater_object;
    end
end

Error message: Not enough input arguments.

Error in LesserGreen (line 28)

obj.spin = spin; % operator (i.e. "up" or "down")

[Geoff Hayes]

@Christina Daniel - what is line 28 in LesserGreen? Is the line

lesser_object = LesserGreen(my_spin,i,j,hubbard,n,perm,t_values,w_values,combine_zero,chop_threshold);

throwing the error?

[Christina Daniel]

I believe the line throwing the error is:

lesser_green_matrix(i,j) = lesser_object;

I am trying to store custom objects in a matrix, and I do not know how to initialize an empty matrix of custom objects. When I change the dimensions of the empty matrix in the declaration, I get this error for different values of i and j; it seems like there is not enough space in the empty matrix or something…

[Image Analyst]

@Christina Daniel that's not what I got from the error message so it's not what I gave in my Answer below (scroll down). Can you attach all your code files with the paperclip icon?

[Christina Daniel]

Yes, I will attach, but it will have to be tomorrow morning pacific time since I don’t have access to the files right now. Thank you in advance for the help!

[Christina Daniel]

For the record, the following link helped me solve part of the problem: https://www.mathworks.com/help/matlab/matlab_oop/initialize-object-arrays.html

Answer 1

[Image Analyst]

Looks like it expects you to pass some arguments in to the spin() function. Can you attach the spin() function? What is it? Is it a spin button on your GUI? If so, maybe you mean app.spin.value or something?

[Christina Daniel]

Oh, spin is a property of the LesserGreen class.

[Christina Daniel]

Hmmm… maybe this is what I need to use? https://www.mathworks.com/help/matlab/matlab_oop/initializing-arrays-of-handle-objects.html

[Walter Roberson]

No the error implies that spin is in the argument list defining LesserGreen but that you did not pass enough parameters to the function