data sharing Between two GUIs

hi everyone. i am using one main GUI and sub GUI. i want to share the variable in main GUI to sub GUI, for that i am using setappdata and getappdata. in my sub GUI i have two axes. when i am using handles to specify the axes to plot the data.i am getting error as shown below. command: plot(handles.time_axes,x,y);

error:

??? Attempt to reference field of non-structure array.

even when i am suing the following command set(handles.pp_value,'string',num2str(m)) i am having the same error.

please some one help me. can we use both handles and appdata in a GUI. please let me know where i am committing the mistake.

[Jarrod Rivituso]

Could you post a snippet of your code so people can see a little more of what you are trying to do?

[phani]

basically i am trying to acquire data from DAC. so in my girst GUI i will set the samapling frequency[fs] and no of samples [N] in two variables. i want to use those two variables in the sub GUI as shown below.

load('d1.mat');

N=getappdata(0,'N')

y=d(1:N,1);

m=max(y);

set(handles.pp_value,'string',num2str(m));

when i am using this command :set(handles.pp_value,'string',num2str(m));

it is showing the error "??? Attempt to reference field of non-structure array."

and i created two axes in the sub GUI i want to plot a particular two values in a particular GUI so i used the command:

plot(handles.time_axes,x,y);

on execution the error i same. can we use both appdata and hadles structures in a same GUI. if not how to set a value in a static text box and draw a plot in a particular axis using appdata. or can we use handles structure only to share data between main and sub GUI. any type of help is accepted.

thank you.

Answer 1

[Doug Hull]

http://blogs.mathworks.com/videos/2005/10/03/guide-video-part-two/

Watch this video about data passing in GUI design in MATLAB.