Error using the User Defined function of Excel in Matlab [duplicate] - matlab

Question

This question already exists:
Closed 10 years ago.
Possible Duplicate:
Excel Addin Error #NAME?
I think it is a follow-up query to my earlier reported issue concerning User defined function in Excel.
I am able to use the function in Excel when used Manually, but when I write to an excel file using Matlab using xlswrite, it gives an error #NAME?
I am attaching the screenshots of the both when entered manually and when using the function through Matlab.
Thanks
EDIT :
Thanks a lot. I have stored the VBA function as an Excel addin here :
C:\Users\Administrator\AppData\Roaming\Microsoft\Addins
Here is what I saw about Excel Add-ins not loaded when used in Automation :
http://www.excelforum.com/excel-programming/472145-calling-excel-macro-from-vb-6-app-problem.html
I am attaching the small snippet of the code from chi_squared() here :
Function Chi_Squared(act, exp, Optional df)
This is how I write to an excel file in Matlab :
Formula_chisqr={[ '=chi_squared(' 'O2:O22' ',' 'M2:22' ')']};
[status, message] = xlswrite1(ExcelFilename,Formula_chisqr,sheetname, Location_Agg);
I also tried giving the complete path as suggested. But it did not work.
Thanks

Answer 1

You have to specify the workbook where the UDF defined. Even if your function is it your PERSONAL.XLSB file. You don't have to do it only if UDF is defined in the same file where you use it.
For example,
='myFunctions.xlsb'!chi_squired(O2:O21,P2:P21)
If myFunctions.xlsb is not opened you may need to specify full path to the file.
If you want to be able to call UDF in any file without specifying the file name, you need to save the file as Add-in, and then enable it in Options - Add-ins - Manage Add-ins.
Another idea: When you use XLSWRITE provide file name with extension XLSX, like test.xlsx, not just test. By default MATLAB saves files with XLS extention in older format. It looks like when you open such file in newer version of Excel (2007/2010) the compatibility mode does not allow macros or UDFs to run.

Answer 2

When you open the Excel as a COM server, the UDF's and Add-ins are not loaded by default. So, you need to first load the add-ins if you would like to use the add-in your Excel file.
Here is the small code snippet in Matlab which loads the add-ins before opening the Excel file.
Excel = actxserver ('Excel.Application');
Excel.Workbooks.Open('C:\YourAddInFolder\AddInNameWithExtension');
Excel.Workbooks.Item('AddInNameWithExtension').RunAutoMacros(1);
File='C:\YourFileFolder\FileName';
if ~exist(File,'file')
ExcelWorkbook = Excel.Workbooks.Add;
ExcelWorkbook.SaveAs(File,1);
ExcelWorkbook.Close(false);
end
Excel.Workbooks.Open(File);
Source : Mathworks