MATLAB: Define filname for exported data with GUI

export dataguilabel exported data

Hi guys,

I would like to define the name of an exported xls file via GUI, so I added the following commands to a "filename_callback":

contents=cellstr(get(hObject,'String'));

filename=[contents{get(hObject,'String')}];

assignin('base','filename',contents);

in the next step I use the following command to save my Matrix "results":

save('results','filename','xls');

The Excel-file should have the name, that I add in GUI, but I'm always receiving the error: Error using save Variable 'filename' not found.

Does anybody have an advice?

Best Answer

the save command saves the data in .mat format by default. It is not possible to write to xls format with this command, only to ascii if specified by the options. What you are probably looking for is xlswrite

xlswrite(filename,results)

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Mustapha - if you are going to use GUIDE to build your GUI, then rather than using global variables to share information between callbacks, use the handles structure to save the dm or fm data and then access this data from another callback. For example, in your d_mois_Callback callback, do

function d_mois_Callback(hObject, eventdata, handles)
contents=cellstr(get(hObject,'String'));
popdm=contents(get(hObject,'Value'));
popdm;
if(strcmp(popdm,'Janvier'));
    dm='01';
elseif ...
end
handles.dm = dm;
guidata(hObject, handles); % this saves the updated handles structure

Then in your pushbutton callback you would do

function stat_all_Callback(hObject, eventdata, handles)
dm = handles.dm;
fm = ...; % etc.
end

Note that you may want to check for the existence of these fields (dm, fm, etc.) before you try to access them. Or assign default values to these fields in the OpeningFcn of your GUI. Also, you have duplicate code in your two popup menu callbacks. Since you know

contents=cellstr(get(hObject,'String'));
popfm=contents(get(hObject,'Value'));

then perhaps you could just find popfm in contents and use its index as your dm or fm value (assuming that your list of months are in the usual order).

MATLAB: Cancel the beep and an error msg in GUI button cancellation

Bail out if they click cancel

if filename == 0
  return;
end

Best Answer

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