How to use pushbutton and popupmenu

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Efren Lema
Efren Lema 2015-8-21
评论： Adam 2015-8-21
to use , pushbutton position data from a .csv and I can manipulate and store in any variable but when I go to the function no longer exists popupmenu this variable the code is as follows.
function pushbutton1_Callback(hObject, eventdata, handles) %Cargar archivo *.csv
[nombre direccion]=uigetfile('*.csv','Escoger Archivo *.CSV');
if nombre==0
return
end
EEGDATOS1=importdata(fullfile(direccion,nombre));
EEGDATOS1=EEGDATOS1.data;
function popupmenu_Callback(hObject, eventdata, handles)
EEGDA=EEGDATOS1 % in this line gives me the error HELP
T7=EEGDA(:,2:2);
%%Frecuencia de Muestreo y tiempo
Fs=128;
T=1/Fs;
tiempo=size(T7)/Fs;
tt=0:1/Fs:tiempo;
H=get(handles.EscogerElectrodo,'Value')
switch H
case 2 % AF3
set(handles.mensaje,'String','AF3')
drawnow();
case 3 % F7
set(handles.mensaje,'String','F7')
drawnow();
otherwise
end

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采纳的回答

Adam
Adam 2015-8-21
编辑：Adam 2015-8-21
You need
handles.EEGDATOS1 = EEGDATOS1
guidata( hObject, handles )
at the end of your pushbutton callback and
EEGDA = handles.EEGDATOS1
at the start of your popup menu callback.
Each function in a GUI, just like functions anywhere else that are not nested, has its own scope and workspace. Once the function ends so does its workspace. The call to the guidata function updates the UI's 'handles' structure onto which has now been added your data.
  2 个评论
Efren Lema
Efren Lema 2015-8-21
thanks , I was proving but I error
guidata( hObject, handles )
Adam
Adam 2015-8-21
Oops, yes, I made a typo in my answer originally there

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