Wrong hifac and ofac values in JP14_getTransform.m

[jerdra]

I think there may have been a small mix-up with the oversampling and maximum allowable frequency factor given in func/JP14_getTransform.m

if nargin < 5
		hifac = 8;
	end

	if nargin < 4
		ofac = 1;
	end

Shouldn't the hifac value be set to 1 here? Otherwise the sampling frequencies that are computed in the line below

f = (1/(T*ofac):1/(T*ofac):hifac*N/(2*T)).';

Would exceed the nyquist limit of the sampler. In Power's original code these are swapped (ofac=8, hfac=1)

[lindenmp]

Wow, I'm sorry that I missed this! (I have not been monitoring this code base for a while!). Did you manage to the solve the issue? If not, I can go back and look at my code. In any case, there are many other tools around for processing fMRI data that are superior to this code (e.g., https://fmriprep.org/en/stable/), so I would suggest using those if you're seeking to process your own data (but given the age of this issue, i suspect you've already moved on!).