Hello,

I'm trying to run the SPM PPI function, but when I select the VOI that I created in marsbar it gives an error saying that the 'xY' variable is not found (see below). I've read through multiple posts re: the toolbox, but can't seem to find anyone else that has encountered this specific issue. Any suggests on steps I could take to address this would be greatly appreciated!

Error:

Warning: Variable 'xY' not found. 
> In spm_peb_ppi (line 237) 
Unrecognized field name "xY".

Error in spm_peb_ppi (line 240)
    xY(1) = p.xY;
 
Error while evaluating UIControl Callback.

-Rachel