How to export data from Matlab to excel for a loop?

Question

I have a code for \"for loop\"

for i=1:4 statement... y=sim(net, I); end

now

Answer 1

You can also do for yourself what xlswrite does internally, which is interact using COM. I prefer to do this when I have a frequently used excel template or data file, because it allows for more control (albeit with more lines of code).

Excel    = actxserver('Excel.Application');
Workbook = Excel.Workbooks.Open('myExcelFile.xlsx');
MySheet  = Excel.ActiveWorkBook.Sheets.Item(1);

set( get(MySheet,'Range','A1:A10'), 'Value', yourValues);
...
invoke(Workbook, 'Save');
invoke(Excel, 'Quit');
delete(Excel);

This would allow you to save new data to new ranges without re-opening excel each time.

Even better would be to define an oncleanup function (as does xlswrite) to prevent lost file locks (especially when you're doing things like exiting out of debug mode):

...
myWorkbook = Excel.Workbooks.Open(filename,0,true);
cleanUp = onCleanup(@()xlsCleanup(Excel, filename));

function xlsCleanup(Excel,filepath)
    try
        Excel.DisplayAlerts = 0; %// Turn off dialog boxes
        [~,n,e] = fileparts(filepath); %// Excel API expects just the filename
        fileName = [n,e];
        Excel.Workbooks.Item(fileName).Close(false);
    end
    Excel.Quit;
 end