how to get an matrix as an output in a function

I have the following function I do not know why it is not working. Would you please help me?

function [L_e]=L_element(e,nnpe,nn)
% Gather matrix
L_e=zeros(nnpe,nn);
for i=1,nnpe
    for j=1,nn
        if j==(nnpe-1)*(e-1)+i
            L_e(i,j)=1;
        end
    end
end
end

Answer 1

[Rik]

The mlint is giving you a hint: it wants you to put a semicolon to suppres output. Why would you have an output with the for loop? Because you put a comma instead of a colon:

function [L_e]=L_element(e,nnpe,nn)
% Gather matrix
L_e=zeros(nnpe,nn);
for i=1:nnpe
    for j=1:nn
        if j==(nnpe-1)*(e-1)+i
            L_e(i,j)=1;
        end
    end
end
end

Of course you can also avoid the nested loop:

function [L_e]=L_element(e,nnpe,nn)
[I,J]=ndgrid(1:nnpe,1:nn);
L_e= J==(nnpe-1)*(e-1)+I ;
L_e=double(L_e);
end

[Faezeh Manesh]

Thanks for your answer. I would like to get the L_e equation for each element or e in that function. Would you please help me to get the code working. Thanks.

[Rik]

Both functions in my answer return a matrix (the same in fact). What is your question?

[Stephen23]

" Would you please help me to get the code working"

The code in Riks answer is working: Rik fixed your code and explained exactly what the problem was.

[Faezeh Manesh]

Thanks for your response it is working now.

[darova]

Don't accept the answer