Combining Pushbutton and Program to Read CSV

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Dimas Agil Roeseno Kambuna
Hi, I'm a beginner in Matlab
I have made a program in Matlab on the Command Window to import a .csv file. The coding is (step 1):
y=csvimport('apnea.csv); %apnea is the name of file that I want to open
Well, it has worked and produced a variable (step 2) in the Workspace (with name: y, and value <1002x2cell> )
My question is how to connect the program in the Command Window to the Editor GUI:
% --- Executes on button press in Button_Open.
function Button_Open_Callback(hObject, eventdata, handles)
% hObject handle to Button_Open (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
...???
so that when the push button is pressed, it will make the process of generating step 1 (import csv) and produced a variabel in step 2?? Have not found the way
Thanks

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采纳的回答

TAB
TAB 2013-3-7
编辑：TAB 2013-3-7
When you create any variable in function, its scope is limited to the function workspace. In matlab, each function has its own workspace.
In your case, you have imported csv in function Button_Open_Callback. So variable will be created in its workspace. So you can see this in base workspace.
You can export the variable from function to base workspace using
y=evalin('base','y');
See Base and Function Workspaces
Note: eval & evalin are should be avoid to use.
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Dimas Agil Roeseno Kambuna
Dimas Agil Roeseno Kambuna 2013-3-11
thanks for your answer... But, finally I prefer to use csvimport and save the result in .mat files... this answer made me understand where is my problem.. Thanks :)

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更多回答（2 个）

Jing
Jing 2013-3-7
Hi Dimas,
Actually you can import csv in the callback. But if you have good reason to do that in base workspace (what you mean by command window), you can also access to the base by EVALIN.
evalin('base','y=0:10');
y=evalin('base','y');
Hope this is what you need!
  1 个评论
Dimas Agil Roeseno Kambuna
Dimas Agil Roeseno Kambuna 2013-3-11
thanks for your answer... But, finally I prefer to use csvimport and save the result in .mat files... Thank you guys, I learn something new.. :)

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Walter Roberson
Walter Roberson 2013-3-7

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