Accessing value of toggle button in GUIDE

I made a GUI in GUIDE, and ran into what seems like a simple issue, but I can't figure out what I'm overlooking.

I have an "execute" push button, which when pressed, checks the state of a "frequency plot" toggle button. If "frequency plot" button is active, a function to plot some data runs.

Inside the plotting function, I have:

if get(handles.toggle1,'Value')==1
fdata{1,1}=...
fdata{1,2}=...
end

I do this because the data can be used for different plots, and might not necessarily be used in this case. This is controlled by a toggle button. If the button is active, I add the data to a cell which is plotted.

I get the error: ??? Undefined variable "handles" or class "handles.toggle1".

I can't figure out why. I use this same line with set elsewhere in the program (not this function) and it access it fine.

Answer 1

[Walter Roberson]

Is handles being passed in to the plotting function?

Is the toggle button being created dynamically, or was it created statically and is part of your stored .fig file ?

[Jared]

All toggle buttons are static and were created in GUIDE.

I'll try to explain it better. I have 2 toggle buttons "Frequency" and "File 1", and 1 push button "Execute".

On pressing of "Execute", I check the state of "Frequency" toggle by only using:

if get(handles.togglefplot,'Value')==1;

fplot

end

When "Frequency" is active, and I press "Execute", it jumps to my fplot function. Inside fplot, I try to check if "File 1" is active with the same code as above. However, I get that error. As far as I can see, I did nothing different that when I checked the state of "Frequency".

[Fangjun Jiang]

Is fplot.m a M-function or a M-script. If it is a M-function, you have to pass handles to your function fplot(). Right now, fplot() doesn't seem to have any input argument.

[Walter Roberson]

You are not passing handles to fplot. Redefine you fplot to accept handles as a parameter:

function fplot(handles)

instead of your current

function fplot

and invoke it in the Execute callback with

fplot(handles)