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From: Stefan Heinen on 29 May 2010 18:59
Hey,

My first time building a GUI in matlab. And I'm trying to get input i my program.
Doing this like:

function meanfunction

hinput = uicontrol('Style','edit','String',''...
,'Position',[1470,550,120,25],'Callback',{@input_Callback});

function input_Callback(source,eventdata)
str = get(source, 'String');
nr = str2num(str);
list = nr(1:10);
end

function pushbuton_Callback(source,eventdata,list)
listMed = mean(list)

end

end

error
??? Input argument "list" is undefined.

I like to use the created list future on but I havend figurt out jet how I can use it in the next function. So when i push the button, the programme uses list.

Thx,

Stefan
From: Matt Fig on 29 May 2010 19:26
Put this in after your uicontrol creation.

list = [];

Then get rid of list as an input argument to the pushbutton callback.
From: Stefan Heinen on 29 May 2010 19:58
"Matt Fig" <spamanon(a)yahoo.com> wrote in message <hts7qd$35l$1(a)fred.mathworks.com>...
> Put this in after your uicontrol creation.
>
> list = [];
>
> Then get rid of list as an input argument to the pushbutton callback.

That didn't really work.

I did:

function mean

f = figure('Visible','off','Position',[50,50,1600,900]);

hinput = uicontrol('Style','edit','String','','Position',...
[1470,550,120,25],'Callback',{@input_Callback});

list = [];

function [pain, painMed] = input_Callback(source,eventdata)
str = get(source, 'String');
nr = str2num(str);
list = nr(1:10);
end

function finalbutton_Callback(source,eventdata)
mean(list)
end

output is than NaN. Course after input the list is still empty..

list = []

so that didn't really work. But thx for trying.

Stefan
From: Stefan Heinen on 29 May 2010 20:15
I didn't change anything but t works fine now. Thx
From: Steven Lord on 1 Jun 2010 12:02

"Stefan Heinen" <s.g.h.heinen(a)live.com> wrote in message
news:hts9md$cs$1(a)fred.mathworks.com...
> "Matt Fig" <spamanon(a)yahoo.com> wrote in message
> <hts7qd$35l$1(a)fred.mathworks.com>...
>> Put this in after your uicontrol creation.
>>
>> list = [];
>>
>> Then get rid of list as an input argument to the pushbutton callback.
>
> That didn't really work.
>
> I did:
>
> function mean

So you're calling your GUI function mean but expecting (I assume) your
finalbutton_Callback to compute the average value in the vector list using
the built-in MEAN function? That won't work. Rename your GUI function to
something like meanGUI.

function meanGUI

>
> f = figure('Visible','off','Position',[50,50,1600,900]);
>
> hinput = uicontrol('Style','edit','String','','Position',...
> [1470,550,120,25],'Callback',{@input_Callback});
> list = [];
>
> function [pain, painMed] = input_Callback(source,eventdata)
> str = get(source, 'String');
> nr = str2num(str);
> list = nr(1:10);
> end
>
> function finalbutton_Callback(source,eventdata)
> mean(list)
> end

If both input_Callback and finalbutton_Callback are nested functions that
are nested inside your main GUI function meanGUI, then this would work ...
if you had something in the GUI that actually invoked your
finalbutton_Callback.

function [M, list] = meanGUI


f = figure('Position',[50,50,1600,900]);


hinput = uicontrol('Style','edit','String','','Position',...

[1470,550,120,25],'Callback',{@input_Callback});


list = [];

M = [];


uicontrol('Style', 'pushbutton', 'String', 'Push to close', ...

'Position', [1470 500 120 25], 'Callback', @finalbutton_Callback);

uiwait(f);

function [pain, painMed] = input_Callback(source,eventdata)

str = get(source, 'String');

nr = str2num(str);

list = nr(1:10);

end


function finalbutton_Callback(source,eventdata)

M = mean(list);

close(gcbf);

end

end


--
Steve Lord
slord(a)mathworks.com
comp.soft-sys.matlab (CSSM) FAQ: http://matlabwiki.mathworks.com/MATLAB_FAQ
To contact Technical Support use the Contact Us link on
http://www.mathworks.com


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