I am trying to concatonate two EEG image files, but they are different sizes. So I need to interpolate one of the files first. None of the interpolation functions will work with 4D data. It is also a very large array. Any ideas?
From the description, I understand that you are trying to concatenate two 4-D images of different sizes. I'd suggest that you go through the below post where one of the answers suggests to use "cat" function for this purpose.