Incrementing GUIDE variable

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B_Richardson
B_Richardson 2011-7-19
Goodmorning community,
Quick question:
I have 2 variables that I declare in a createfunction in my GUIDE GUI:
handles = guidata(gcf);
if ~isfield(handles, 'MyMatrix');
handles.MyMatrix = zeros(2, 10);
guidata(gcf, handles);
end
handles = guidata(gcf);
if ~isfield(handles, 'increment');
handles.increment = 1;
guidata(gcf, handles);
end
So the idea is to use .increment to index .MyMatrix
%Pushbutton callback%
MyValue = str2double(get(handles.edit2,'String')); %get value
handles.MyMatrix(handles.increment)= MyValue;
handles.inc + 1; %This is what is not working
handles = guidata(gcf);
I have tried handles.inc = handles.inc + 1; as well.
Right now my output after 2 clicks of the push button are:
ans =
29.5744 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
27.5465 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
Instead of
29.5744 27.5465 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
Thanks in advance!!!
  2 个评论
Sean de Wolski
Sean de Wolski 2011-7-19
What didn't work about:
"I have tried handles.inc = handles.inc + 1; as well."
That appears to be correct to me. Did it throw an error?
You could also look at using persistent variables
B_Richardson
B_Richardson 2011-7-19
Yes that did work. Actually what the problem was
handles = guidata(gcf);
should have been
guidata(gcf, handles)
thanks!

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采纳的回答

Walter Roberson
Walter Roberson 2011-7-19
In your callback, instead of doing handles = guidata(gcf); after the increment of handles.inc, do guidata(gcf, handles) as you want to write out the new value.

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