MATLAB: Ur video on adding a table to GUI and using the data

tabletable data to workspace

i wish to use the data which is being displayed as the output. i can only see the data changing on screen, but if i want access of that data, can u tell me in which variable is it stored or how do i assign the data values to a variable which can be used in the workspace

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If you have a uitable() with handle H, then to get the data from the table, you would use

TheData = get(H,'Data');

The output of this, TheData, would be a cell array containing the individual entries for the array. For example, TheData{3,5} would be the entry for the third row, fifth column.

Related Solutions

MATLAB: How to output variables from a GUI to the workspace in MATLAB 7.8 (R2009a)

There are different ways in which you can send output to the base workspace from a GUI.

You can make use of the output function of the GUI. For example, when you create a GUI with the name ‘mygui’ using GUIDE and save it, GUIDE will automatically create a ‘mygui.m’ file. One of the sub-functions in ‘mygui.m’ will be the ‘main_OutputFcn’ which can be edited to send meaningful output to the workspace. Please refer to the demo video in the following webpage for more information:

 <http://blogs.mathworks.com/videos/2010/02/12/advanced-getting-an-output-from-a-guide-gui/>

In order to pass the required variable to the output function, you can make use of the SETAPPDATA and GETAPPDATA. Please refer to the documentation pages for the above functions for additional information about their usage.

With your GUI open in GUIDE, right click on the UITABLE and select View Callbacks->CellEditCallback.

Add the following lines to the uitable's Cell Edit Callback function:

% This saves Data from the UITABLE into cell array A
A=get(hObject,'Data');   
% This creates double array from a cell array A
B=cell2mat(A);  
% This calculates a dot product between the 2 vectors
dotPr=dot(B(1,:),B(2,:));  
% This Creates a variable called ‘result’ (if it does not exist) and assigns it the value of ‘dotPr’. The variable ‘result’ is stored as the application data of the GUI.
Setappdata(hObject,‘result’, dotPr);

Modify the output function ‘main_OutputFcn’ in the following manner to return ‘result’ to the workspace:

% --- Outputs from this function are returned to the command line.
function varargout = main_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% Get ‘result’ and send it as the command line output for this GUI
varargout{1} = getappdata(hObject,’result’);

An alternative solution is to use the function ASSIGNIN to output the data from GUI to workspace. Refer to the corresponding documentation page for more information about the function.

If using ASSIGNIN, you can modify the ‘CellEditCallback’ of the UITABLE as follows:

% save Data from the UITABLE into cell array A
A=get(hObject,'Data');   
% create double array from a cell array A
B=cell2mat(A);  
% calculate a dot product between the 2 vectors
dotPr=dot(B(1,:),B(2,:));  
% assign the value of the dot product to the variable 'result' in the workspace
assignin('base','result',dotPr)

You might find the following documentation pages about data management in a GUIDE GUI and a Programmatic GUI useful:

 <http://www.mathworks.com/help/releases/R2013a/matlab/creating_guis/ways-to-manage-data-in-a-guide-gui.html> 
 <http://www.mathworks.com/help/releases/R2013a/matlab/creating_guis/ways-to-manage-data-in-a-programmatic-gui.html>

MATLAB: Please help me on this problem!! I need help with uitable!!!

H = mat2cell([H1;H2]);

(vertical concatenation, not horizontal)

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Related Solutions

MATLAB: How to output variables from a GUI to the workspace in MATLAB 7.8 (R2009a)

MATLAB: Please help me on this problem!! I need help with uitable!!!

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