Hi,
Thank you a lot for your quick reply. I came across this post several times till now; and I believe I am doing it exactly as it is described.
I have my master-data folder–> run mt_prep_snap in the shell–> open matlab in a directory (I also check that the path are selected properly); however, I still get the same error, as I posted before.
Is there any specific step that I might have overseen?
Why do I get the “Index exceeds the number of array elements” error?
I would highly appreciate any help 
Best