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From: "Adam Bright" <abc_services_2000@yahoo.co.uk>
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Subject: Re: gui problem
Date: Tue, 15 Apr 2008 16:29:06 +0000 (UTC)
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Hi,thankyou for your responses,i've now used the guidata
command to retrieve the variable but i'm now getting the
following error: 

??? Error using ==> set
Conversion to double from struct is not possible.

Error in ==> gui>listbox1_Callback at 173
    set(handles.listbox1,'String',timeplot5)

Error in ==> gui_mainfcn at 75
        feval(varargin{:});

Error in ==> gui at 43
    gui_mainfcn(gui_State, varargin{:});

??? Error using ==>
gui('listbox1_Callback',gcbo,[],guidata(gcbo))
Error using ==> set
Conversion to double from struct is not possible.

??? Error while evaluating uicontrol Callback

i've tried putting the datestr command in front, but it says:
??? Error using ==> datestr
Cannot convert input into specified date string.
DATENUM failed.
Error using ==> datevec
The input to DATEVEC was not an array of strings..

please can someone help me..