MATLAB: How to add element in vector

arrayguiguidevector

I have a gui in which there is one edit text box and two buttons namely add and save. I have created on blank vector as v=[]; whenever user press add the value of edit text should be added to the vector? how to do that?

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v=[]
a=10
v=[v a]

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MATLAB: How to share vector between two callback function

You got is almost correct. Only update the handles struct store in the figure:

function add_Callback(hObject, eventdata, handles)
v = [];
a = str2num(get(handles.edit1, 'String'));
handles.v=[v a];
guidata(hObject, handles);   % <-- add this

Note that the this can be abbreviated, because the empty v is meaningless here:

function add_Callback(hObject, eventdata, handles)
handles.v = str2num(get(handles.edit1, 'String'));
guidata(hObject, handles);

MATLAB: How to modify vector

What vector? Is x a vector? Why do you possibly need a while loop?

y = y + round(rand(size(y))) - 0.5;

So round(rand(size(y))) is randomly 0 or 1, with 50% chance for either. Subtract 1/2, and you will effectively randomly add or subtract .5.

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Related Solutions

MATLAB: How to share vector between two callback function

MATLAB: How to modify vector

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