How to label columns in matrix?

How can I give the columns contaning values for m, o, r ,t and Diff_irr a label?

ResultMtx = [];

    for m=1:length(months) %loop 12 times for the 12 months
        for o=1:length(orientation) %loop 2 times for south and east
            for r = 1:length(row) %loop 3 times for the 3 rows
                for t=1:length(tilt)       %loop 10 times for the 10 tilting possibilities, this also represents the rows in the matric of irr
                    
                %_____________calculations here to find Diff_irr_____________
                    
                ResultMtx = [ResultMtx;
                    m o r t Diff_irr];
                end
                ResultMtx = [ResultMtx;
                        nan nan nan nan nan];
                    
            end
        end
    end

xlswrite(strcat(Result_File), ResultMtx);

I attempted to write:

 ResultMtx = [ResultMtx; 
     ['month%d, orientation%d, rows%d, tilt%d Irradiance%d,', m, o, r, t, Diff_irr]];

but that did't work obviously and I got the error:

"Dimensions of arrays being concatenated are not consistent."

[Marcel Kreuzberg]

try using table

month = ResultMtx(:,1);
orientation = ResultMtx(:,2);
rows = ResultMtx(:,3);
tilt = ResultMtx(:,4);
Irradiance = ResultMtx(:,5);
ResultTable = table(month, orientation, rows, tilt, Irradiance);

regards

[Hannah]

Hi Marcel, I did that and at the end I wrote:

writetable(ResultTable, strcat(Result_File))

I got an error. Do you know what I'm doing wrong?

[Simon Chan]

Use the following code after calculating the 'Diff_irr':

temp = [m o r t Diff_irr];
ResultMtx = [ResultMtx; temp];

Answer 1

[Chunru]

% After the loop, you obtain ResultMtx.  Convert it into a table with
% column names.  Then write the table
ResultMtx = array2table(ResultMtx, 'VariableNames', ["Month","orientation", "rows", "tilt", "Irradiance"]);
writetable(T, 'res.xlsx');

[Hannah]

Thanks for the reply. in the loop, I wrote:

ResultMtx = [ResultMtx; 
     m, o, r, t, Diff_irr];
                end
                ResultMtx = [ResultMtx;
                        nan nan nan nan nan];
                
ResultMtx = array2table(ResultMtx, 'VariableNames', ["Month","orientation", "rows", "tilt", "Irradiance"]);

outside the loop I wrote:

writetable(T, Result_File);
winopen(Result_File)

but i get the error:

"All input arguments must be tables."

[Chunru]

The following line should be outside of the loop:

ResultMtx = array2table(ResultMtx, 'VariableNames', ["Month","orientation", "rows", "tilt", "Irradiance"]);

[Hannah]

Now it's a lot closer to what I want (see image below).

But how can I have the column headers after every 10 lines, i.e. where I highlighted in yellow?